Answer
y$^2$-12yz+36z$^2$
Work Step by Step
Follow the special product rule of perfect squares where (a+b)$^2$=a$^2$+2ab+b$^2$
(y-6z)$^2$
(y)$^2$+2(y)(-6z)+(-6z)$^2$
y$^2$-12yz+36z$^2$
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 5 - Mid-Chapter Check Point - Page 378: 20
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