Answer
$50m+90n+10$
Work Step by Step
Using the Distributive Property which is given by $a(b+c)=ab+ac,$ the expression, $
10(5m+9n+1)
,$ is equivalent to
\begin{array}{l}\require{cancel}
10(5m)+10(9n)+10(1)
\\\\=
50m+90n+10
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 1 - Introduction to Algebraic Expressions - Study Summary - Practice Exercises - Page 72: 6
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