#### Answer

$x^4+4x^2+4$

#### Work Step by Step

Using $(a\pm b)^2=a^2\pm2ab+b^2$ or the square of a binomial, the square of the given expression, $
(x^2+2)^2
,$ is
\begin{array}{l}\require{cancel}
(x^2)^2+2(x^2)(2)+(2)^2
\\\\=
x^4+4x^2+4
.\end{array}

Published by
Pearson

ISBN 10:
0-13417-805-X

ISBN 13:
978-0-13417-805-9

$x^4+4x^2+4$

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