Factor
\left(1-5a\right)\left(3x+1\right)
Evaluate
\left(1-5a\right)\left(3x+1\right)
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3x+1-5a\left(3x+1\right)
Do the grouping 1+3x-5a-15ax=\left(1+3x\right)+\left(-5a-15ax\right), and factor out -5a in -5a-15ax.
\left(3x+1\right)\left(1-5a\right)
Factor out common term 3x+1 by using distributive property.
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