Answer
$8a+12b-6c$
Work Step by Step
Using $a(b+c)=ab+ac$ (or the Distributive Property), the given expression, $
2(4a+6b-3c)
,$ is equivalent to
\begin{array}{l}\require{cancel}
2(4a)+2(6b)+2(-3c)
\\\\=
8a+12b-6c
.\end{array}
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