# How do you factor 3x^3y^2-147x?

$3 x \left(x \cdot y - 7\right) \left(x \cdot y + 7\right)$
Take $3 x$ as a common factor
$3 x \left({x}^{2} \cdot {y}^{2} - 49\right)$
$3 x \left(x \cdot y - 7\right) \left(x \cdot y + 7\right)$