Question

Factor completely x2 - 8x + 16.

(x + 4)(x + 4)
(X - 4)(x - 4)
(x + 4)(x - 4)
(x-2)(x - 8)

Answer 1

B

Explanation:

(x - 4)(x - 4)

Answer 2

(X - 4)(x - 4)

Explanation:

x2 - 8x + 16

What two numbers multiply to 16 and add to -8

-4 * -4 = 16

-4 +-4 = -8

(x-4) (x-4)

(x-4)^2