Evaluate
30x^{2}+140x+266
Factor
2\left(15x^{2}+70x+133\right)
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30x^{2}+227x+203-87x+63
Combine 60x^{2} and -30x^{2} to get 30x^{2}.
30x^{2}+140x+203+63
Combine 227x and -87x to get 140x.
30x^{2}+140x+266
Add 203 and 63 to get 266.
30x^{2}+140x+266
Multiply and combine like terms.
2\left(15x^{2}+70x+133\right)
Factor out 2. Polynomial 15x^{2}+70x+133 is not factored since it does not have any rational roots.
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