Evaluate
x\left(4x^{3}+3x^{2}+2x+1\right)
Factor
x\left(4x^{3}+3x^{2}+2x+1\right)
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4x^{4}+3x^{3}+2x^{2}+x
Anything plus zero gives itself.
x\left(4x^{3}+3x^{2}+2x+1\right)
Factor out x. Polynomial 4x^{3}+3x^{2}+2x+1 is not factored since it does not have any rational roots.
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