lazyboy1
lazyboy1
21-02-2017
Mathematics
contestada
factorise xy(x-y)+yz(y-z)+zx(z-x)
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Аноним
Аноним
21-02-2017
expand first:-
yx^2 - xy^2 + zy^2 -yz^2 + xz^2 - zx^2
there is no common factor so we cant factorize this
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