Question

Aaron is solving the equation x2 – 8x = 1. Which value must be added to both sides of the equation to make the left side a perfect-square trinomial?

-16

-4

16

4

Answer 1

The correct answer is D

Answer 2

The answer to your question is: +16

Explanation:

x² - 8x = 1

x² - 8x + (4)² = 1 + (4)²

x² - 8x + 16 = 1 + 16

(x - 4) ² = 17