Answer
$n^{2}$
Work Step by Step
Given : $n^{x+2}\div n^{x}=$$\frac{n^{x+2}}{n^{x}}=$ $n^{x+2-x}=$$n^{2}$
(since $\frac{a^{m}}{a^{n}}=$ $a^{m-n}$ )
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