### Home > AC > Chapter 10 > Lesson 10.3.2 > Problem 10-114

10-114.

Create a generic rectangle.

What number needs to be added to both sides to complete the square?

(*x* + 2)² = −3 + 4

(*x* + 2)² = 1

*x* = −3 or −1

Subtract 7 from both sides.

Follow the steps in part a.

(*x* − 4)² = 9

*x* = 1 or 7

Follow the steps in part (b).