Factor
\frac{b\left(200+a-4a^{2}-32a^{7}\right)}{4}
Evaluate
\frac{b\left(200+a-4a^{2}-32a^{7}\right)}{4}
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\frac{200b-32a^{7}b+ab-4a^{2}b}{4}
Factor out \frac{1}{4}.
b\left(200-32a^{7}+a-4a^{2}\right)
Consider 200b-32a^{7}b+ab-4a^{2}b. Factor out b.
\frac{b\left(200-32a^{7}+a-4a^{2}\right)}{4}
Rewrite the complete factored expression. Polynomial 200-32a^{7}+a-4a^{2} is not factored since it does not have any rational roots.
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