+0  
 
+1
169
1
avatar+82 

13[6^2/(5^2-4^2)+9]

AdrienAcosta  Nov 10, 2017
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 #1
avatar+92458 
+2

13[6^2/(5^2-4^2)+9]

=13[36/(25-16)+9]

=13[36/(9)+9]

=13[4+9]

=13*13

=169

Melody  Nov 11, 2017

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