9.1 Adding and Subtracting Polynomials Practice

Simplify the following expression and write the final answer in standard form.

 $8x+9-4x+2$  

Simplify the following expression and write the final answer in standard form.

 $8x^3-3x+1+2x^2+x^3$ 

•  $9x^3+2x^2-3x+1$  

•  $9x^3-3x+1+2x^2$  

•  $6x^3+2x^2+1$  

•  $7x^3-3x+1+2x^2$  

•  $7x^3+2x^2-3x+1$  

Simplify the following expression and write the final answer in standard form.

 $\left(20xy+13x\right)-\left(3x-12\right)$ 

•  $20xy+10x+12$  

•  $20xy+10x-12$  

•  $20xy+16x+12$  

•  $20xy+16x-12$  

•  $36xy+12$  

Which of the following are ways to name the following expression: (Select all that apply)

 $8x^3-3x+9-13x^4$  

• 4th degree

• cubic

• trinomial

• polynomial

• quadnomial

Which of the following are ways to name the following expression: (Select all that apply)

 $15x$  

• linear

• constant

• binomial

• monomial

• polynomial

Which of the following are ways to name the following expression: (Select all that apply)

 $12-4x+x^2$  

• linear

• quadratic

• cubic

• trinomial

• binomial

Which of the following are ways to name the following expression: (Select all that apply)

 $2$  

• linear

• constant

• polynomial

• monomial

• binomial

Which of the following are ways to name the following expression: (Select all that apply)

 $3x^2$  

• linear

• quadratic

• cubic

• monomial

• binomial

Which of the following are ways to name the following expression: (Select all that apply)

 $2x^3$  

• quadratic

• cubic

• trinomial

• monomial

• binomial

Which of the following are ways to name the following expression: (Select all that apply)

 $-4x^8$  

• quadratic

• 8th degree

• constant

• monomial

• polynomial