6√6√6√6
is equal to:
(6√6)(√6)(√6)
*In multiplying radicals, you need to multiply the index to index(index is the number outside the square root sign), and you need to multiply radicand to radicand(radicand is the number inside the square root symbol). So:
=(6√36)(√6)
=6√216 or if you use calculator, the answer is 88.181....
