We are given expression :
.
We need to simplify it.
First we need to apply quotient rule of exponents.
According to quotient rule of exponents, we need to subtract powers.
Therefore,
.
Now, we need to apply exponents of exponent rule in next step.
According to exponents of exponent rule, we need to distribute whole exponent inside exponent.
Therefore,
.
Therefore, final answer is
.