Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter P - Mid-Chapter Check Point - Page 71: 24



Work Step by Step

... expand the square of the sum with $(a+b)^{2}=a^{2}+2ab+b^{2}$ $(x^{2}+2)^{2}=(x^{2})^{2}+2(x^{2})(2)+(2)^{2}\quad$... use the rule: $(a^{m})^{n}=a^{mn}$ = $x^{4}+4x^{2}+4$
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