Answers

2014-04-06T18:37:03+05:30
[m2 -n2] [m2-n2]  ans  




Hope it helped you
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2014-04-06T18:42:50+05:30
Just follow the following solution i hope it could be right
(m+n)(m^2+n^2-mn)(m-n)=(m^2-n^2)(m^2+n^2-mn)
m^4-n^4+mn^3-m^3n+m^2n^2-m^2n^2=m^4-n^4+mn^3-m^3n
m(m^3+n^3)-n(m^3+n^3)=(m-n)(m^3+n^3)
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