Factor
-\left(2x+y\right)\left(4x+y\right)
Evaluate
-\left(2x+y\right)\left(4x+y\right)
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-8x^{2}-6yx-y^{2}
Consider -8x^{2}-6xy-y^{2} as a polynomial over variable x.
\left(2x+y\right)\left(-4x-y\right)
Find one factor of the form kx^{m}+n, where kx^{m} divides the monomial with the highest power -8x^{2} and n divides the constant factor -y^{2}. One such factor is 2x+y. Factor the polynomial by dividing it by this factor.
Examples
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