Respuesta :

-2x^2 - 32x

Find the area of the entire grey area without the white...
(2x-8)(4x) = 8x^2 - 32x

Find the area of the white...
(5x)(2x) = 10x^2

Subtract the area of the white from the grey...

(8x^2 - 32x) - (10x^2) = -2x^2 - 32x