Question

The length of a rectangle is (x-8)units, and its width is (x+11) units. Which expression can represent the area of the rectangle?

Answer 1

x² + 3x - 88

Explanation:

Answer 2

(x²+3x-88) square units

Explanation:

Area of a rectangle = Length × Width

Given

length of a rectangle is (x-8)units

Its width is (x+11) units.

Required

Expression for the area of the rectangle

Substituting the given function into the formula.

Area of the rectangle = (x-8)(x+11)

Area of the rectangle = x(x)+11x-8x-88

Area of the rectangle = x²+3x-88

Hence the expression that represents the area of the rectangle is x²+3x-88 units²