SOLUTION: can someone explain how to do this math problem -3^2+3^2

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Question 198347: can someone explain how to do this math problem
-3^2+3^2
Found 2 solutions by edjones, stanbon:
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
-3^2+3^2
-a^2+a^2=0
0 answer.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
-3^2+3^2
---------------
= -9 + 9
= 0
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Cheers,
Stan H.