Factor
\frac{80a^{2}+35b^{2}+42ba^{3}}{140}
Evaluate
\frac{3ba^{3}}{10}+\frac{4a^{2}}{7}+\frac{b^{2}}{4}
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\frac{100a^{2}-14a^{3}b+35b^{2}+56ba^{3}-20a^{2}}{140}
Factor out \frac{1}{140}.
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