Factor
\left(q-1\right)\left(2q-9p\right)
Evaluate
\left(q-1\right)\left(2q-9p\right)
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q\left(-9p+2q\right)-\left(-9p+2q\right)
Do the grouping 2q^{2}-9pq-2q+9p=\left(2q^{2}-9pq\right)+\left(-2q+9p\right), and factor out q in the first and -1 in the second group.
\left(-9p+2q\right)\left(q-1\right)
Factor out common term -9p+2q by using distributive property.
Examples
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Limits
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