Answer:
[tex]8\sqrt[4]{8}[/tex]
Step-by-step explanation:
To solve this, we need to first factorize the 128 and find a power of 4 in there. 128 = 2^7, or 2^4 * 2^3, so when we take the 4th root, we will get [tex]2\sqrt[4]{8}[/tex]. Multiply this by 4 to get [tex]8\sqrt[4]{8}. \blacksquare[/tex]
