SOLUTION: Does 9-x2 equal -x2+9 If so how do you reslove: assume x=2 9-(2)2 9-4=5 -(2)2 +9 4+9=13

Algebra ->  Exponents-negative-and-fractional -> SOLUTION: Does 9-x2 equal -x2+9 If so how do you reslove: assume x=2 9-(2)2 9-4=5 -(2)2 +9 4+9=13       Log On


   

Question 712742: Does 9-x2 equal -x2+9
If so how do you reslove:
assume x=2
9-(2)2
9-4=5
-(2)2 +9
4+9=13

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Does 9-x2 equal -x2+9
If so how do you reslove:
assume x=2
9-(2)2
9-4=5
-(2)2 +9
4+9=13
----------
They're equal.
For x = 2:
9 - x^2 = 9-4 = 5
----------
-x^2 + 9 = -4+9 = 5