If the area of a rectangle is represented by x^2+8x+15 and it's length is represented by x+5, which expression representsthe width of the rectangl?

Question

Factoring quadratics 

Answer 1

x^2 + 8x +15 is the area

 

x+5 is the length

x+3 is the width

(x+5)(x+3)=
x^2 + 3x +5x +15

x^2 +8x + 15