Question

I have been working on this problem for a long time, and need some help, thanks.

Answer 1

x^4•z^−4/(−y^−3)^3 is what you posted

= x^4•y^9/−z^4

= −x^4•y^9/z^4

read as negative x to the 4th times y to the 9th divided by z to the 4th