Answers

2015-11-11T19:12:19+08:00
4m+10n

4m+10n because  if you multiply (2m+5n)2 the totally answer is 4m+10n..




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2015-11-11T19:18:20+08:00
(2m +5n)2= 4m +10n

use the distribution method babe :D
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