# algebra II

posted by
**Jessica**
.

I need to write a polynomial in SIMPLEST FORM having roots 2,-2 and 4. I have to gt rid of the parentheses by multiplying everything out.Did I do it correctly? Also, someone said yes, but I'm wondering if it suppose to have anything else done to it-it seems way too easy the way I did it.

(x-2)(x+2)(x-4)original problem

1.x^2 + 2x-2x=x^2-4)

2. (x^2-4)(x-4)

3. x^3-4x^2-4x+16=0