Factor
9r\left(-2r^{2}+3r-4\right)
Evaluate
9r\left(-2r^{2}+3r-4\right)
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9\left(3r^{2}-2r^{3}-4r\right)
Factor out 9.
r\left(3r-2r^{2}-4\right)
Consider 3r^{2}-2r^{3}-4r. Factor out r.
9r\left(3r-2r^{2}-4\right)
Rewrite the complete factored expression. Polynomial 3r-2r^{2}-4 is not factored since it does not have any rational roots.
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