What is 3aX(-x)X2bxc squared ———————

test

$\frac{{((3a)(-x)(2bxc))}^2}{6ac}$

=$\frac{(-6abcx^2)^2}{6ac}$

=$\frac{36a^2b^2c^2x^4}{6ac}$

=$6ab^2cx^4$