Question

What is the square root of 3 times the square root of 27?

Answer 1

`=color(blue)(9`

Explanation:

`sqrt3 xx sqrt27`

`=sqrt3 xx sqrt(3*3*3`

`=sqrt3 xx 3sqrt(3`

`=3 xx sqrt3 xx sqrt3`

`=3 xx 3`

`=color(blue)(9`