Evaluate
\left(f_{8}+1\right)f_{8}^{3}
Factor
\left(f_{8}+1\right)f_{8}^{3}
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f_{8}^{4}+f_{8}^{3}
Multiply -1 and -1 to get 1.
f_{8}^{3}\left(f_{8}+1\right)
Factor out f_{8}^{3}.
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