+0  
 
+1
905
1
avatar+82 

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

 Nov 10, 2017
 #1
avatar+118670 
+2

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

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

=13[36/(9)+9]

=13[4+9]

=13*13

=169

 Nov 11, 2017

1 Online Users

avatar