Question

The area of a rectangle is x2 - 2x - 15 and the length of the rectangle is x + 3. Find the width of the rectangle.

A. x – 5

B. x2 + 15

C. x + 5

D. (x – 2)(x + 3)

Please explain. T:

Answer 1

Since area = length x width, you have
\[x ^{2}-2x-15 = (x+3) *width\]

Answer 2

when you factor the left hand side and simplify, you'll get width as x - 5

Answer 3

Ohhhhh, thank you sir.