Answer
$(6x^n-5)(2x^n-5)$
Work Step by Step
$12x^{2n}-40x^n+25$
$12x^{2n}-30x^n-10x^n+25$
$6x^n(2x^n-5)-5(2x^n-5)$
$(6x^n-5)(2x^n-5)$
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