Factor
x^{2}\left(36+x-9x^{2}-4x^{4}\right)
Evaluate
x^{2}\left(36+x-9x^{2}-4x^{4}\right)
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x^{2}\left(x-4x^{4}-9x^{2}+36\right)
Factor out x^{2}. Polynomial x-4x^{4}-9x^{2}+36 is not factored since it does not have any rational roots.
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