Question

Multiply by simplifying and factoring. Assume all expressions under radicals represent nonnegative numbers. ^3sqrt y^4 ^3sqrt16y^5=

Answer 1

\[\sqrt[3]{y^4} \sqrt[3]{16y^5} =\]

Answer 2

y^(4/3) * 16^(1/3) * y^(5/3)
= cuberoot 16 * y^3
i thin

Answer 3

that' s an awkward one!

Answer 4

one way to check if this is right is to let y be say 4 and calculate values of the two expressions to see if they are equal - ill try that now

Answer 5

yep - with x=4 they both work out to 161.2699
so cuberoot 16 y^3 is right