Question

Factor this polynomial completely.

x^2-8x+16

A. (x-4) (x-4)
B. (x+4) (x+4)
C. (x-4) (x+4)
D. Does not factor

Answer 1

Answer: (x-4) (x-4)

Explanation:

I have done this before!

Answer 2

(x-4) (x-4)

Explanation:

foil [first, outside, inside, last]

x^2 -8x = 16

(x-4) (x-4) = x^2 -4x -4x +16 = x^2 -8x +16