Question

The length of a rectangle is (2x + 4). The width of the rectangle is (x² – 2). What is the

expression of the area?. Note: The area of a rectangle is b.h.

Answer 1

A = (2x + 4)(x^2 - 2)

A = 2x(x^2) + 2x(-2) + 4(x^2) + 4(-2)

A = 2x^3 + -4x + 4x^2 + -8

A = 2x^3 + 4x^2 - 4x - 8

Hope this helps!! :)