a painting is a square, 2x+8 inches on each side. find and expand an expression for the area of the painting.

Question

answer should be simplified with all likes terms combined. thank you, much needed.

Answer 1

A = L² = (2x + 8)² = (2x)² + 2(2x)(8) + 8²

 

A = 4x² + 32x + 64

 

A = A(x) = (4x² + 32x + 64) in²