## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$36a-48b$
Using $a(b+c)=ab+ac$ (or the Distributive Property), and then combining like terms, the given expression, $6[2a+4(a-2b)] ,$ simplifies to \begin{array}{l}\require{cancel} 6[2a+4a-8b] \\\\= 6[6a-8b] \\\\= 36a-48b .\end{array}