Factor
\left(2k-1\right)\left(7j+6\right)
Evaluate
\left(2k-1\right)\left(7j+6\right)
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7j\left(2k-1\right)+6\left(2k-1\right)
Do the grouping 14jk-7j+12k-6=\left(14jk-7j\right)+\left(12k-6\right), and factor out 7j in the first and 6 in the second group.
\left(2k-1\right)\left(7j+6\right)
Factor out common term 2k-1 by using distributive property.
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