Evaluate
2\left(7+\lambda ^{2}-\lambda ^{3}\right)
Factor
2\left(7+\lambda ^{2}-\lambda ^{3}\right)
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16-2\lambda ^{3}+2\lambda ^{2}-2
Calculate 2 to the power of 4 and get 16.
14-2\lambda ^{3}+2\lambda ^{2}
Subtract 2 from 16 to get 14.
2\left(7-\lambda ^{3}+\lambda ^{2}\right)
Factor out 2. Polynomial -\lambda ^{3}+\lambda ^{2}+7 is not factored since it does not have any rational roots.
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