Question

Find the area of a rectangle with length, l = 2x + 3 and width, w = 2x - 3. Hint: A = lw.

Answer 1

4x² - 9

Explanation:

The area of the rectangle = (2x + 3)(2x - 3)

= (2x)² - (3)²

= (4x² - 9)

Answer 2

The area of the rectangle is (2x + 3)(2x - 3) = 4x2 - 9.