+0  
 
0
514
3
avatar

-7 to the power of 2

 Apr 22, 2015

Best Answer 

 #2
avatar+1068 
+8

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 Apr 22, 2015
 #1
avatar+27396 
+5

Do you want (-7)2 = 49  or  -(72) = -49 ?

.

 Apr 22, 2015
 #2
avatar+1068 
+8
Best Answer

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civonamzuk Apr 22, 2015
 #3
avatar+95375 
+5

I if it is just written as    $$-7^2$$     it means    $$-1*7^2=-1*49=-49$$

 

so

 

$$-7^2=-49$$

 

This confuses everybody at first!

 Apr 23, 2015

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