If the width of a window is (x+7) inches and the length of the window is (x+9) inches, give the expression which represents the area of the window. Use the formula area=base.height. If x=8 inches, find the area of the window using the expression you found in part a.

Answer 1

(x+7).(x+9)
x = 8
(8+7).(8+9)=255