Evaluate the following polynomials Two part question Show al

Evaluate the following polynomials. Two part question. Show all work.

1.a 2x^3-x^2-9x+5 for x=(-2)

b. 3x^2-8x+10 for x=(-1)

a 2x^3-x^2-9x+5 for x=(-2)

For this we need to plug x = -2

=2(-2)^3-(-2)^2-9(-2)+5

=-16-4+18+5

=-20+23

=3 answer for a

3x^2-8x+10 for x=(-1) For this we need to plug x = -1

=3(-1)^2 -8(-1) +10

=3+8+10

=21 is the answer for b