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Section 6.2 Use Multiplication Properties of Exponents

Simplify Expressions with Exponents

In the following exercises, simplify.

Simplify Expressions Using the Product Property for Exponents

In the following exercises, simplify each expression.

Simplify Expressions Using the Power Property for Exponents

In the following exercises, simplify each expression.

Simplify Expressions Using the Product to a Power Property

In the following exercises, simplify each expression.

( 10 x y z ) 3

1000 x 3 y 3 z 3

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Simplify Expressions by Applying Several Properties

In the following exercises, simplify each expression.

( 4 a 3 b 2 ) 3

64 a 9 b 6

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( 2 q 3 ) 4 ( 3 q ) 2

48 q 14

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( 1 3 x 2 ) 2 ( 1 2 x ) 3

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( 2 5 m 2 n ) 3

8 125 m 6 n 3

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Multiply Monomials

In the following exercises 8, multiply the monomials.

( −9 n 7 ) ( −16 n )

144 n 8

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( 7 p 5 q 3 ) ( 8 p q 9 )

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( 5 9 a b 2 ) ( 27 a b 3 )

15 a 2 b 5

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Section 6.3 Multiply Polynomials

Multiply a Polynomial by a Monomial

In the following exercises, multiply.

−4 ( y + 13 )

−4 y 52

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−6 u ( 2 u + 7 )

−12 u 2 42 u

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3 q 2 ( q 2 7 q + 6 ) 3

3 q 4 21 q 3 + 18 q 2

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( b 4 ) · 11

11 b 44

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Multiply a Binomial by a Binomial

In the following exercises, multiply the binomials using: the Distributive Property, the FOIL method, the Vertical Method.

( 6 y 7 ) ( 2 y 5 )

12 y 2 44 y + 35 12 y 2 44 y + 35 12 y 2 44 y + 35

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In the following exercises, multiply the binomials. Use any method.

( y 4 ) ( y 8 )

y 2 12 y + 32

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( q + 16 ) ( q 3 )

q 2 + 13 q 48

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( 5 m 8 ) ( 12 m + 1 )

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( u 2 + 6 ) ( u 2 5 )

u 4 + u 2 30

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( 9 x y ) ( 6 x 5 )

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( 8 m n + 3 ) ( 2 m n 1 )

16 m 2 n 2 2 m n 3

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Multiply a Trinomial by a Binomial

In the following exercises, multiply using the Distributive Property, the Vertical Method.

( n + 1 ) ( n 2 + 5 n 2 )

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( 3 x 4 ) ( 6 x 2 + x 10 )

18 x 3 21 x 2 34 x + 40 18 x 3 21 x 2 34 x + 40

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In the following exercises, multiply. Use either method.

( y 2 ) ( y 2 8 y + 9 )

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( 7 m + 1 ) ( m 2 10 m 3 )

7 m 3 69 m 2 31 m 3

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Section 6.4 Special Products

Square a Binomial Using the Binomial Squares Pattern

In the following exercises, square each binomial using the Binomial Squares Pattern.

( q 15 ) 2

q 2 30 q + 225

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( 8 u + 1 ) 2

64 u 2 + 16 u + 1

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( 4 a 3 b ) 2

16 a 2 24 a b + 9 b 2

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Multiply Conjugates Using the Product of Conjugates Pattern

In the following exercises, multiply each pair of conjugates using the Product of Conjugates Pattern.

( y + 2 5 ) ( y 2 5 )

y 2 4 25

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( 12 c + 13 ) ( 12 c 13 )

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( 6 r ) ( 6 + r )

36 r 2

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( u + 3 4 v ) ( u 3 4 v )

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( 5 p 4 4 q 3 ) ( 5 p 4 + 4 q 3 )

25 p 8 16 q 6

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Recognize and Use the Appropriate Special Product Pattern

In the following exercises, find each product.

( 6 a + 11 ) ( 6 a 11 )

36 a 2 121

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( 5 x + y ) ( x 5 y )

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( c 4 + 9 d ) 2

c 8 + 18 c 4 d + 81 d 2

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( p 5 + q 5 ) ( p 5 q 5 )

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( a 2 + 4 b ) ( 4 a b 2 )

4 a 3 + 3 a 2 b 4 b 3

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Section 6.5 Divide Monomials

Simplify Expressions Using the Quotient Property for Exponents

In the following exercises, simplify.

Simplify Expressions with Zero Exponents

In the following exercises, simplify.

( 12 0 ) ( −12 ) 0

1

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( 19 n ) 0 ( 25 m ) 0

0

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Simplify Expressions Using the Quotient to a Power Property

In the following exercises, simplify.

Simplify Expressions by Applying Several Properties

In the following exercises, simplify.

( 3 x 4 2 y 2 ) 5

343 x 20 32 y 10

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( 3 n 2 ) 4 ( −5 n 4 ) 3 ( −2 n 5 ) 2

10,125 n 10 4

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Divide Monomials

In the following exercises, divide the monomials.

64 a 5 b 9 −16 a 10 b 3

4 b 6 a 5

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144 x 15 y 8 z 3 18 x 10 y 2 z 12

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( 8 p 6 q 2 ) ( 9 p 3 q 5 ) 16 p 8 q 7

9 p 2

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Section 6.6 Divide Polynomials

Divide a Polynomial by a Monomial

In the following exercises, divide each polynomial by the monomial.

( 35 x 2 75 x ) ÷ 5 x

7 x 15

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550 p 6 300 p 4 10 p 3

55 p 3 30 p

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( 63 x y 3 + 56 x 2 y 4 ) ÷ ( 7 x y )

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96 a 5 b 2 48 a 4 b 3 56 a 2 b 4 8 a b 2

12 a 4 6 a 3 b 7 a b 2

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57 m 2 12 m + 1 −3 m

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105 y 5 + 50 y 3 5 y 5 y 3

21 y 2 + 10 1 y 2

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Divide a Polynomial by a Binomial

In the following exercises, divide each polynomial by the binomial.

( k 2 2 k 99 ) ÷ ( k + 9 )

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( v 2 16 v + 64 ) ÷ ( v 8 )

v 8

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( 3 x 2 8 x 35 ) ÷ ( x 5 )

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( n 2 3 n 14 ) ÷ ( n + 3 )

n 6 + 4 n + 3

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( 4 m 3 + m 5 ) ÷ ( m 1 )

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( u 3 8 ) ÷ ( u 2 )

u 2 + 2 u + 4

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Section 6.7 Integer Exponents and Scientific Notation

Use the Definition of a Negative Exponent

In the following exercises, simplify.

Simplify Expressions with Integer Exponents

In the following exercises, simplify.

( c −2 d ) ( c −3 d −2 )

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Convert from Decimal Notation to Scientific Notation

In the following exercises, write each number in scientific notation.

The thickness of a dime is about 0.053 inches.

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In 2015, the population of the world was about 7,200,000,000 people.

7.2 × 10 9

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Convert Scientific Notation to Decimal Form

In the following exercises, convert each number to decimal form.

1.5 × 10 10

15,000,000,000

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Multiply and Divide Using Scientific Notation

In the following exercises, multiply and write your answer in decimal form.

( 2 × 10 5 ) ( 4 × 10 −3 )

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( 3.5 × 10 −2 ) ( 6.2 × 10 −1 )

0.0217

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In the following exercises, divide and write your answer in decimal form.

9 × 10 −5 3 × 10 2

0.0000003

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Chapter practice test

For the polynomial 10 x 4 + 9 y 2 1
Is it a monomial, binomial, or trinomial?
What is its degree?

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In the following exercises, simplify each expression.

( 12 a 2 7 a + 4 ) + ( 3 a 2 + 8 a 10 )

15 a 2 + a 6

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( 9 p 2 5 p + 1 ) ( 2 p 2 6 )

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( 4 a 3 b 5 ) 2

16 a 6 b 10

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( −9 r 4 s 5 ) ( 4 r s 7 )

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3 k ( k 2 7 k + 13 )

3 k 3 21 k 2 + 39 k

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( v 9 ) ( 9 v 5 )

9 v 2 86 v + 45

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( 4 c 11 ) ( 3 c 8 )

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( n 6 ) ( n 2 5 n + 4 )

n 3 11 n 2 + 34 n 24

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( 2 x 15 y ) ( 5 x + 7 y )

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( 7 p 5 ) ( 7 p + 5 )

49 p 2 25

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( 87 x 15 y 3 z 22 ) 0

1

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12 x 2 + 42 x 6 2 x

6 x + 21 3 x

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( 70 x y 4 + 95 x 3 y ) ÷ 5 x y

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64 x 3 1 4 x 1

16 x 2 + 4 x + 1

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( y 2 5 y 18 ) ÷ ( y + 3 )

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Convert 83,000,000 to scientific notation.

8.3 × 10 7

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Convert 6.91 × 10 −5 to decimal form.

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In the following exercises, simplify, and write your answer in decimal form.

( 3.4 × 10 9 ) ( 2.2 × 10 −5 )

74,800

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8.4 × 10 −3 4 × 10 3

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A helicopter flying at an altitude of 1000 feet drops a rescue package. The polynomial −16 t 2 + 1000 gives the height of the package t seconds a after it was dropped. Find the height when t = 6 seconds.

424 feet

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Questions & Answers

how did you get 1640
Noor Reply
If auger is pair are the roots of equation x2+5x-3=0
Peter Reply
Wayne and Dennis like to ride the bike path from Riverside Park to the beach. Dennis’s speed is seven miles per hour faster than Wayne’s speed, so it takes Wayne 2 hours to ride to the beach while it takes Dennis 1.5 hours for the ride. Find the speed of both bikers.
MATTHEW Reply
420
Sharon
from theory: distance [miles] = speed [mph] × time [hours] info #1 speed_Dennis × 1.5 = speed_Wayne × 2 => speed_Wayne = 0.75 × speed_Dennis (i) info #2 speed_Dennis = speed_Wayne + 7 [mph] (ii) use (i) in (ii) => [...] speed_Dennis = 28 mph speed_Wayne = 21 mph
George
Let W be Wayne's speed in miles per hour and D be Dennis's speed in miles per hour. We know that W + 7 = D and W * 2 = D * 1.5. Substituting the first equation into the second: W * 2 = (W + 7) * 1.5 W * 2 = W * 1.5 + 7 * 1.5 0.5 * W = 7 * 1.5 W = 7 * 3 or 21 W is 21 D = W + 7 D = 21 + 7 D = 28
Salma
Devon is 32 32​​ years older than his son, Milan. The sum of both their ages is 54 54​. Using the variables d d​ and m m​ to represent the ages of Devon and Milan, respectively, write a system of equations to describe this situation. Enter the equations below, separated by a comma.
Aaron Reply
find product (-6m+6) ( 3m²+4m-3)
SIMRAN Reply
-42m²+60m-18
Salma
what is the solution
bill
how did you arrive at this answer?
bill
-24m+3+3mÁ^2
Susan
i really want to learn
Amira
I only got 42 the rest i don't know how to solve it. Please i need help from anyone to help me improve my solving mathematics please
Amira
Hw did u arrive to this answer.
Aphelele
hi
Bajemah
-6m(3mA²+4m-3)+6(3mA²+4m-3) =-18m²A²-24m²+18m+18mA²+24m-18 Rearrange like items -18m²A²-24m²+42m+18A²-18
Salma
complete the table of valuesfor each given equatio then graph. 1.x+2y=3
Jovelyn Reply
x=3-2y
Salma
y=x+3/2
Salma
Hi
Enock
given that (7x-5):(2+4x)=8:7find the value of x
Nandala
3x-12y=18
Kelvin
please why isn't that the 0is in ten thousand place
Grace Reply
please why is it that the 0is in the place of ten thousand
Grace
Send the example to me here and let me see
Stephen
A meditation garden is in the shape of a right triangle, with one leg 7 feet. The length of the hypotenuse is one more than the length of one of the other legs. Find the lengths of the hypotenuse and the other leg
Marry Reply
how far
Abubakar
cool u
Enock
state in which quadrant or on which axis each of the following angles given measure. in standard position would lie 89°
Abegail Reply
hello
BenJay
hi
Method
I am eliacin, I need your help in maths
Rood
how can I help
Sir
hmm can we speak here?
Amoon
however, may I ask you some questions about Algarba?
Amoon
hi
Enock
what the last part of the problem mean?
Roger
The Jones family took a 15 mile canoe ride down the Indian River in three hours. After lunch, the return trip back up the river took five hours. Find the rate, in mph, of the canoe in still water and the rate of the current.
cameron Reply
Shakir works at a computer store. His weekly pay will be either a fixed amount, $925, or $500 plus 12% of his total sales. How much should his total sales be for his variable pay option to exceed the fixed amount of $925.
mahnoor Reply
I'm guessing, but it's somewhere around $4335.00 I think
Lewis
12% of sales will need to exceed 925 - 500, or 425 to exceed fixed amount option. What amount of sales does that equal? 425 ÷ (12÷100) = 3541.67. So the answer is sales greater than 3541.67. Check: Sales = 3542 Commission 12%=425.04 Pay = 500 + 425.04 = 925.04. 925.04 > 925.00
Munster
difference between rational and irrational numbers
Arundhati Reply
When traveling to Great Britain, Bethany exchanged $602 US dollars into £515 British pounds. How many pounds did she receive for each US dollar?
Jakoiya Reply
how to reduced echelon form
Solomon Reply
Jazmine trained for 3 hours on Saturday. She ran 8 miles and then biked 24 miles. Her biking speed is 4 mph faster than her running speed. What is her running speed?
Zack Reply
d=r×t the equation would be 8/r+24/r+4=3 worked out
Sheirtina
Practice Key Terms 2

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Source:  OpenStax, Elementary algebra. OpenStax CNX. Jan 18, 2017 Download for free at http://cnx.org/content/col12116/1.2
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