10.1 Add and subtract polynomials  (Page 2/10)

Find the degree of the following polynomials:

1. ⓐ $\mathrm{-6}y$
2. ⓑ $4x-1$
3. ⓒ $3x^4+4x^2-8$
4. ⓓ $2y^2+3y+9$
5. ⓔ $\mathrm{-18}$

Find the degree of the following polynomials:

1. ⓐ $47$
2. ⓑ $2x^2-8x+2$
3. ⓒ $x^4-16$
4. ⓓ $y^5-5y^3+y$
5. ⓔ $9a^3$

Add: $12x^2+5x^2.$

Add: $\mathrm{-11}{y}^2+8y^2.$

Subtract: $9n-\left(\mathrm{-5}n\right).$

Subtract: $\mathrm{-7}{a}^3-\left(\mathrm{-5}{a}^3\right).$

Add: $3x^2+3y^2-5x^2.$

Add: $2a^2+b^2-4a^2.$

Find the sum: $\left(3x^2-2x+8\right)+\left(x^2-6x+2\right).$

Find the sum: $\left(7y^2+4y-6\right)+\left(4y^2+5y+1\right).$

Find the difference: $\left(6y^2+3y-1\right)-\left(3y^2-4\right).$

Find the difference: $\left(8u^2-7u-2\right)-\left(5u^2-6u-4\right).$

Subtract: $\left(4n^2-7n-3\right)$ from $\left(8n^2+5n-3\right).$

Subtract: $\left(a^2-4a-9\right)$ from $\left(6a^2+4a-1\right).$