Answer
($x^{n}$+3)($x^{n}$+2)
Work Step by Step
$x^{2n}$ +2$x^{n}$+3$x^{n}$+6=
$x^{n}$$x^{n}$+2$x^{n}$+3$x^{n}$+6 =$x^{n}$($x^{n}$+2) +3($x^{n}$+2)=($x^{n}$+3)($x^{n}$+2)
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