Question

A basketball court is in the shape of a rectangle. It has a length of (x - 7) meters and a width of (x + 3) meters:

(x-7)(x + 3)
Which of the following simplified expressions represents the area of the basketball court in square meters?
-6x + 3
ox2 - 21
ox2 - 4x - 21
ox² - 7x + 3

Answer 1

x2 - 4x - 21

Explanation:

Area = (x -7 )(x +3)

= x*x - 7*x + x*3 - 7*3

=x2 - 4x - 21