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X^9/7 convert from exponent form to radical form

User Gkiely
by
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1 Answer

14 votes

Answer:


x^{(9)/(7)} = \sqrt[7]{x^9}

Explanation:

You can solve this by realising that the denominator of a fractional exponent can be expressed as the base of a radical.

Note also that the order does not matter. You could also express it as


\sqrt[7]{x}^9

The reason this works is that you're effectively breaking the exponent into fractions. The first answer is the equivalent of:


(x^9)^(1/7)

and the second would be:


(x^(1/7))^9

In both cases, the exponents would be multiplied, giving the same result.

User Amarjeet
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4.8k points