Question

QUADRATIC EQUATIONS HELP(no link or im reporting)

Answer 1

D

Explanation:

Given

x² - 8x +

To complete the square

add ( half the coefficient of the x- term )² to x² - 8x

x² + 2(- 4)x + (- 4)²

= x² - 8x + 16 → D

= (x - 4)² ← perfect square