Answer:
14x²- 6x - 2
Explanation:
find the area of the entire rectangle and then subtract the area of the unshaded rectangle
Area of entire rectangle:
(3x-1)(5x+2) Use the FOIL method to get:
15x² + 6x - 5x - 2
combine 'like terms' to get:
15x² + x - 2
Area of unshaded rectangle:
x(x+7) = x² + 7x
Subtract:
15x² + x - 2
+ -x² - 7x + 0
14x²- 6x - 2