I typed the LaTeX wrong the first time, the last expression should read:
({6x})^{3/4}
Give that one a shot yourself and tell me where you get stuck, I'll be here reading this so I can help you along. :)
(\sqrt[4]{(a^3)(b^5)})^{1/2}
Hint: Remember roots are on the bottom, so convert the...
(\sqrt[4]{6x})^3
Step 1:
(({6x})^{1/4})^3
Step 2:
({6x})^{3/4}
Technically, you can go farther but this is the simplest and most compact form.
Remember when you are converting the square root into a fraction before you use the fractional exponent rule that, "Roots are located on the...