Question

A rectangle has length x + 9 and width 2x - 1. What is the area of the rectangle?​

Answer 1

A = 2x^2 + 17x -9

Explanation:

A = LW

L = x + 9

W = 2x - 1

A = (x+9)(2x-1)

FOIL

A = 2x^2 + 18x - x - 9

A = 2x^2 + 17x -9