Question

I need help properties of exponents (rational exponents)

Answer 1

Answer:

  9z

Step-by-step explanation:

The relevant rules of exponents are ...

  $\sqrt[n]{z}=z^{\frac{1}{n}}\\\\(z^a)(z^b)=z^{a+b}$

So you have ...

  3·z^(1/4)·3·z^(3/4) = 3·3·z^(1/4+3/4) = 9z^(4/4) = 9z