Factor
\left(4x-y\right)\left(4x+y-1\right)
Evaluate
\left(4x-y\right)\left(4x+y-1\right)
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16x^{2}-4x-y^{2}+y
Consider 16x^{2}-y^{2}-4x+y as a polynomial over variable x.
\left(4x-y\right)\left(4x+y-1\right)
Find one factor of the form kx^{m}+n, where kx^{m} divides the monomial with the highest power 16x^{2} and n divides the constant factor -y^{2}+y. One such factor is 4x-y. Factor the polynomial by dividing it by this factor.
Examples
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