#### Answer

$7+24i$

#### Work Step by Step

$(4+3i)(4+3i)$
$4(4+3i)+3i(4+3i)$
$16+12i+12i+9i^{2}$
$16+24i+9i^{2}$
Since $i^{2}=-1$, the expression becomes $16+24i+9(-1)$
By solving, the expression reduces to $7+24i$

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

$7+24i$

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