Write the following polynomial in standard form. y = (x-2)(x+2)(x+9)

Answer 1

To solve this you need to multiply all these factors together.

(x-2)(x+2)(x+9)

Will start by multiplying the first 2 terms by FOIL

(x^2+2x-2x-4)(x+9)

Combine like terms

(x^2-4)(x+9)

Since these are both binomials (2 terms) you can FOIL again

x^3+9x^2-4x-36

Since there are no like terms to combine, that is your final answer.