Answers

2015-10-24T16:49:29+05:30
2\log(x-y)\\~\\=\log(x-y)^2\\~\\=\log(x^2+y^2-2xy)\\~\\=\log(18xy-2xy)\\~\\=\log(16xy)\\~\\=\log(16)+\log(x)+\log(y)\\~\\=4\log(2)+\log(x)+\log(y)
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thanks
np :)
what
"np" is a shortcut for "no problem, you're welcome"
ok