+1084 To calculate this, we first need to "find" the area of both shapes: the big rectangle and the small rectangle.
BIG RECTANGLE:
4x * (x + 2) = 4x^2 + 8x
SMALL RECTANGLE:
x * (3x + 5) = 3x^2 + 5x
[ shaded area ] = [ big rectangle area ] - [ small rectangle area ]
This is 4x^2 + 8x - (3x^2 + 5x) = 4x^2 + 8x - 3x^2 - 5x = x^2 + 3x
:)
+230 Big rectangle is 4x^2+8x
Smaller rectangle is 3x^2+5x
4x^2+8x-3x^2+5x=x^2+13x is our final answer.
