Answer:
2*x^4*z^3
Explanation:
To answer this kind of question, you first start rearranging the terms in the numerator and denominator, so you don't get confused.
3x^3 * 4x^3 * z^4 / 2x * x * 3z
Now you multiply like parts in the numerator and denominator to keep it simple.
(3x^3 * 4x^3) * z^4 / (2x * x) * 3z
3x^3 * 4x^3 = 12x^6
2x * x = 2x^2
12x^6 * z^4 / 2x^2 * 3z
Now divide like terms that are in the numerator and denominator so multiplying later will be easier.
12x^6 / 2x ^ 2 * z^4 / 3z
12x^6 / 2x^2 = 6x^4
z^4/3z = z^3 / 3
Now you multiply both terms,
6x^4 * z^3/3
2*x^4*z^3