Evaluate
14\left(x^{2}+1\right)
Factor
14\left(x^{2}+1\right)
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14+5x+7x^{2}+3x^{3}-5x+7x^{2}-3x^{3}
Add 7 and 7 to get 14.
14+7x^{2}+3x^{3}+7x^{2}-3x^{3}
Combine 5x and -5x to get 0.
14+14x^{2}+3x^{3}-3x^{3}
Combine 7x^{2} and 7x^{2} to get 14x^{2}.
14+14x^{2}
Combine 3x^{3} and -3x^{3} to get 0.
14x^{2}+14
Multiply and combine like terms.
14\left(x^{2}+1\right)
Factor out 14. Polynomial x^{2}+1 is not factored since it does not have any rational roots.
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