Answers

2014-02-22T19:32:29+05:30
(8p*7p)-(8p*3)+(1*7p)-(1*3)
56p2-24p+7p-3
56p2-17p-3
0
2014-02-25T12:42:21+05:30
8p(7p-3)+1(7p-3)
56p2-24p+7p-3
56p2-17p-3

0