hi this is my question:
write in single power of 4
(4^2)^3
how would i do this?
Not quite. My first post says that $\displaystyle (4^2)^3$ is the same thing as $\displaystyle 4\cdot4\cdot4\cdot4\cdot4\cdot4$ which is the same thing as $\displaystyle 4^{\color{red}6}$.
So, the answer is $\displaystyle (4^2)^3=4^6$.
And moreover, in general, $\displaystyle (a^m)^n=a^{m\cdot{n}}$