polynomials

What term is this polynomial classified as

 $2x^2+3x\ -5$  

• binomial

• trinomial

• monomial

• polynomial

add together the following polynomials:
 $\left(4x^2-x+2\right)+\left(2x^2+5x-7\right)$  

•  $6x^2+6x+9$  

•  $6x^2+4x-5$  

•  $2x^2+6x+9$  

•  $4x^2+4x-5$  

subtract the following polynomials:
 $\left(5x^3-4x^2+3x+1\right)-\left(2x^3-5x^2+x\right)$  

•  $7x^3+x^2+5x+1$  

•  $3x^3-9x^2+4x+1$  

•  $3x^3+x^2+2x+1$  

•  $7x^3-9x^2+4x+1$  

multiply:

 $\left(2x^2+x+2\right)\times3x$  

•  $6x^3+3x^2+6x$  

•  $2x^2+3x+2$  

•  $6x^3+x+2$  

•  $6x^2+3x+2$  

subtract:
 $\left(3x^2+x-5\right)-\left(2x^2+3x+7\right)$  

•  $5x^2+4x+2$  

•  $x^2+4x+2$  

•  $5x^2-2x-12$  

•  $x^2-2x-12$