Answer
$4z^{8}$ - 12$z^{4}$y + 9$y^{2}$
Work Step by Step
1. Square of a binomial
$(2z^{4} - 3y)^{2}$ = $(2z^{4})^{2}$ + 2(2$z^{4}$)(-3y) + $(-3y)^{2}$
2. Solve exponents and multiply
$4z^{8}$ - 12$z^{4}$y + 9$y^{2}$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.3 - Polynomials - R.3 Exercises - Page 29: 66
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