Question

Please help!

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

A. x – 5

B. x^2 + 15

C. x + 5

D. (x – 2)(x + 3)

A, B, C, or D? Please explain (:

Answer 1

Area = length x width.
Width = Area/length
Divide x^2 -2x-15 by x+3.

Answer 2

Its a lot like the reciprocal problem as far as factoring the equation goes. They justr give you one of the terms.

Answer 3

Ah, it's A. Thank you.