SOLUTION: 9-x^2

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 9-x^2      Log On


   

Question 249268: 9-x^2
Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
9-x^2
(3-x)(3+x)
.
(3-x)
3=x or x=3
.
and
(3+x)
3=-x
-3=x or x=-3