Factor
\frac{35b^{2}-20a^{2}-14ba^{3}}{140}
Evaluate
-\frac{ba^{3}}{10}+\frac{b^{2}}{4}-\frac{a^{2}}{7}
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\frac{0-70a^{3}b+35b^{2}+56ba^{3}-20a^{2}}{140}
Factor out \frac{1}{140}.
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