# How do you write #root8(15)^3# in rational exponent notation?

##### 1 Answer

Oct 5, 2016

The root becomes the denominator and the index becomes the numerator

#### Explanation:

"Rational" means in the form of a fraction.

Recall: one of the laws of indices:

The root becomes the denominator and the index becomes the numerator

Apply the law given above.

The root becomes the denominator and the index becomes the numerator