Question

Divide 72xyz² by −9xz.

Answer 1

​$$\begin{gathered} \frac{72xy{z}^2}{-9xz} \\ =\frac{72\times x\times y\times z\times z}{-9\times x\times z} \\ =-8x^{(1-1)}y{z}^{(2-1)} \\ =-8yz \end{gathered}$$