Question

Rectangle A has an area of 9 − x2. Rectangle B has an area of x2 + x − 12. In simplest form, what is the ratio of the area of Rectangle A to the area of Rectangle B? Show your work.

Answer 1

Area of rectangle A/ Area of rectangle B
(9-x^2)/(x^2+x-12)

Answer 2

Now factor them and take it to the simplest form

Answer 3

can u?

Answer 4

If you show me the steps I will simplify it

Answer 5

(9-x^2)/(x^2+x-12)
(3^2-x^2)/(x^2+4x-3x-12)
(3+x)(3-x)/(x+4)(x-3)
-(3+x)(x-3)/(x+4)(x-3)

Answer 6

does that help?

Answer 7

A little, Its all smooshed together so its hard to understand..

Answer 8

cancel the term (x-3)

Answer 9

Still confused..

Answer 10

-(3+x)/(x+4)

Answer 11

whats after that?

Answer 12

Thats it.

Answer 13

Thats both of the simplified answer? I undersnad how you got that..