Divide. \[ \left(-32 v^{6} z^{4}+36 v^{6} z^{6}\right) \div\left(4 v^{4} z^{5}\right) \] Simplify your answer as much as possible.

Step 1 ：Given the expression \(-32 v^{6} z^{4}+36 v^{6} z^{6}\) divided by \(4 v^{4} z^{5}\).

Step 2 ：We can simplify this by dividing each term in the numerator by the denominator.

Step 3 ：When we divide, the powers in the variables subtract. So, we get \(v^{2}*(9*z^{2} - 8)/z\).

Step 4 ：Finally, we simplify the expression to get \(-8 v^{2} z^{-1}+9 v^{2} z\).