Question

What is the length and width of the rectangle if the area is given by trinomial r squared - 2r - 15. Use factoring

Answer 1

(r+3)(r-5)

Explanation:

r^2-2r-15

(r+3)(r-5)

+3-5=-2

+3*-5=-15

Answer 2

The length is r + 3 and the width r - 5..

Explanation:

r^2 - 2r - 15

= (r - 5)(r + 3)

The length is r + 3 and the width r - 5