Question

Find the area of the shaded region.
x in.
(6x-9) in.
x in.
(6x-9) in.

Answer 1

Unshaded region = x(x) = x^2

Big square = (6x-9)^2 = 36x^2 -108x + 81

Therefore shaded region = Big square - Unshaded region

= 36x^2 -108x + 81 - x^2
= 35x^2 -108x + 81