+0  
 
+5
563
2
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x^2=81

 Nov 12, 2015

Best Answer 

 #1
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+5

i believe the answer would be 9 since 9^2=81

 Nov 12, 2015
 #1
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+5
Best Answer

i believe the answer would be 9 since 9^2=81

Guest Nov 12, 2015
 #2
avatar+118724 
+5

Or it could be -9 since   -9*-9 = +81 too

 Nov 12, 2015

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