Factor
\left(x-y\right)\left(x+5y\right)
Evaluate
\left(x-y\right)\left(x+5y\right)
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x^{2}+4yx-5y^{2}
Consider x^{2}+4xy-5y^{2} as a polynomial over variable x.
\left(x+5y\right)\left(x-y\right)
Find one factor of the form x^{k}+m, where x^{k} divides the monomial with the highest power x^{2} and m divides the constant factor -5y^{2}. One such factor is x+5y. Factor the polynomial by dividing it by this factor.
Examples
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