Factor
\left(5x^{2}-1\right)\left(x^{2}+4\right)
Evaluate
\left(5x^{2}-1\right)\left(x^{2}+4\right)
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\left(5x^{2}-1\right)\left(x^{2}+4\right)
Find one factor of the form kx^{m}+n, where kx^{m} divides the monomial with the highest power 5x^{4} and n divides the constant factor -4. One such factor is 5x^{2}-1. Factor the polynomial by dividing it by this factor. The following polynomials are not factored since they do not have any rational roots: 5x^{2}-1,x^{2}+4.
Examples
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