Nth root facts for kids

Pascal's Triangle showing P(4,1) = 4.

Nth root of a number r is a number which, if multiplied by itself n times, makes r. You could also say that it is a number k for which the following equation is true:

$k^n=r$

(for meaning of $k^n$, read exponentiation.)

We write it like this: $\sqrt[n]{r}$.