Answers

2015-01-22T21:51:54+05:30
397 * 397 + 104 * 104 +2*397*104
= (397+104)^2
=501^2
=251001
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2015-01-22T22:08:17+05:30
We should know the DMAS rule
then we should multiply 397 and 397, 104 and 104 &2 and 397 and 104 
after that we should add all the products then we get our final answer which is 677212134352
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