Factor
\frac{a\left(45a-8b^{7}\right)}{4}
Evaluate
-2ab^{7}+\frac{45a^{2}}{4}
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\frac{45a^{2}-8ab^{7}}{4}
Factor out \frac{1}{4}.
a\left(45a-8b^{7}\right)
Consider 45a^{2}-8ab^{7}. Factor out a.
\frac{a\left(45a-8b^{7}\right)}{4}
Rewrite the complete factored expression.
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