Answer
$(12x+8)$ cm
Work Step by Step
Sidelength of square is $(3x+2)$ cm
4 * sidelength of square = perimieter
$4*(3x+2)$
$4*3x+4*2$
$12x+8$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 10 - Section 10.3 - Solving Nonlinear Systems of Equations - Exercise Set - Page 624: 38
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