Answer: 9z
Step-by-step explanation:
(NOTE: I've already solved this in the comments, but I am going to put an answer here for anyone else who stumbles across this question.)
To solve this problem, rewrite the first term into the form k * z^n:
> 3 * z^(1/4)
Now, you have 3z^(1/4) * 3z^(3/4). Now, we can use a power rule (a^x * a^y = a^(x+y)) to solve the problem. Your final answer should be:
> 9 * z^1, or 9z.
