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

$6m+15n+30$
$\bf{\text{Solution Outline:}}$ Use the Distributive Property to find the product of the given expression, $3(2m+5n+10) .$ $\bf{\text{Solution Details:}}$ Using the Distributive Property which is given by $a(b+c)=ab+ac,$ the expression above is equivalent to \begin{array}{l}\require{cancel} 3(2m+5n+10) \\\\= 3(2m)+3(5n)+3(10) \\\\= 6m+15n+30 .\end{array}