Factor
\left(a-2r\right)\left(5c+6b\right)
Evaluate
\left(a-2r\right)\left(5c+6b\right)
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6b\left(-2r+a\right)+5c\left(-2r+a\right)
Do the grouping 6ab-12br-10cr+5ac=\left(6ab-12br\right)+\left(-10cr+5ac\right), and factor out 6b in the first and 5c in the second group.
\left(-2r+a\right)\left(6b+5c\right)
Factor out common term -2r+a by using distributive property.
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