Hey All,

Problem: $\displaystyle a^{3(7-x)}a^x$

I'm not sure what to do with the $\displaystyle a^{3(7-x)}$.

It looks like I could use the distributive law which would make $\displaystyle a^{21-3x}$ but I'm not sure if that applies to exponents.

I appreciate any comments or advice!

Thanks,