SOLUTION: Can you simplify this radical: square root(sixth root(x^5 y^6 ))

Question 633999: Can you simplify this radical: square root(sixth root(x^5 y^6 ))
Answer by jsmallt9(3759) (Show Source): You can put this solution on YOUR website!

The easiest way to work with an expression which has multiple type of roots is to rewrite the radicals using fractional exponents.

A square root is the same as an exponent of 1/2 and a sixth root is the same as an exponent of 1/6. Rewriting your expression with these exponents instead of the radicals we get:

Then, with the rule for exponents for raising a power to a power (i.e. multiply the exponents), this simplifies to:

This may be an acceptable answer. But we can easily switch back to radical form. 1/12 as an exponent means 12th root:

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