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 $7+24i$
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