Question

Liliana decides to crop a square photo 2 inches on each side to fit it into a frame. The area of the original photo was 121 square inches. In the equation (x + 2)2 = 121, x represents the side measure of the cropped photo.

What are the dimensions of the cropped photo?

8 inches by 8 inches
9 inches by 9 inches
12 inches by 12 inches
13 inches by 13 inches

Answer 1

Answer: B) 9 inches by 9 inches

Explanation:

Edg 2022

Answer 2

x = 9 or B

Explanation:

Formula

(x + 2)^2 = 121

Comment

The easiest way to do this is to take the square root immediately, which is usually possible.

Solution

√(x + 2)^2 = √121 Take the square root

x + 2 = 11 Subtract 2 from both sides

x + 2 - 2 = 11 - 2

x = 9