Factor
\left(1-3b\right)\left(2c-3d\right)
Evaluate
\left(1-3b\right)\left(2c-3d\right)
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2c-3d-3b\left(2c-3d\right)
Do the grouping 2c-3d-6bc+9bd=\left(2c-3d\right)+\left(-6bc+9bd\right), and factor out -3b in -6bc+9bd.
\left(2c-3d\right)\left(1-3b\right)
Factor out common term 2c-3d by using distributive property.
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