Factor
3a^{2}b^{7}\left(5a^{3}b^{5}-4a+7b^{3}\right)
Evaluate
3a^{2}b^{7}\left(5a^{3}b^{5}-4a+7b^{3}\right)
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3\left(7a^{2}b^{10}-4a^{3}b^{7}+5a^{5}b^{12}\right)
Factor out 3.
a^{2}b^{7}\left(7b^{3}-4a+5a^{3}b^{5}\right)
Consider 7a^{2}b^{10}-4a^{3}b^{7}+5a^{5}b^{12}. Factor out a^{2}b^{7}.
3a^{2}b^{7}\left(7b^{3}-4a+5a^{3}b^{5}\right)
Rewrite the complete factored expression.
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