SOLUTION: rationalize 3/cube root of 72

Question 361761: rationalize 3/cube root of 72
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
From 3/cube root of 72, we need to realize that 216 is a perfect cube...
Thus we will multiply top and bottom by the cube root of three, giving us
(3 * cube root(3)) / (cube root(216)) =
(3 * cube root(3)) / 6 =
(cube root(3)) / 2
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