Question

What is 3square root of 5+ square root of 125?

Answer 1

The answer is `8sqrt5`.

Explanation:

`3sqrt5+sqrt125`

Simplify `sqrt125`

`3sqrt5+sqrt(5xx5xx5)=`

`3sqrt5+sqrt(5^2xx5)`

Apply square root rule `sqrt(a^2)=a`

`3sqrt5+5sqrt5=`

`8sqrt5`