Question

ah

Answer 1

So we have :
\[3\sqrt[4]{128}=3\sqrt[4]{16\times8}=(3)(2)\sqrt[4]8=6\sqrt[4]8=12\sqrt[4]{\frac{1}{2}}=\frac{12}{\sqrt[4]{2}}\]
I gave a couple simplifications. I'm not sure which one you want though haha.

Answer 2

Anytime!

Answer 3

Ehh...yeah I think so!
Which ones?

Answer 4

Well we have a special property of exponents and roots in math. It is:
\[\sqrt[c]{a^b}=a^\frac{b}{c}\]

Answer 5

EXACTLY! There ya go