Factor
3x\left(-x^{2}+4x-7\right)
Evaluate
3x\left(-x^{2}+4x-7\right)
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3\left(-x^{3}+4x^{2}-7x\right)
Factor out 3.
x\left(-x^{2}+4x-7\right)
Consider -x^{3}+4x^{2}-7x. Factor out x.
3x\left(-x^{2}+4x-7\right)
Rewrite the complete factored expression. Polynomial -x^{2}+4x-7 is not factored since it does not have any rational roots.
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