Question

What is the simplest radical form of the square root of 216?

Answer 1

`=color(blue)(6sqrt(6)`

Explanation:

Prime factorisation of `216` helps us simplify the radical:
`216=sqrt(2*2*2*3*3*3)`

`=sqrt(2^2*2*3^3*3)`

`=2*3sqrt(2*3)`

`=color(blue)(6sqrt(6)`