algebra precalculus - Simplifying an expression with algebraic indices

I don't know why but I just can't simplify this expression and its driving me mad!! Could someone please help me with the steps?

$\frac {2^n 9^{2n+1}}{6^{n-2}}$

I know the answer is 4 x $3^{3n + 4}$ I just can't get there.

Thanks in advance :)

Answer

Notice that:

$$6^{n-2}=2^{n-2}3^{n-2}$$

and

$$9^{2n+1}=3^{4n+2}$$

Then use exponent rules.