Question

What is the square root of 28?

Answer 1

`sqrt28=sqrt(4*7)=2sqrt7`

Explanation:

`sqrt28=sqrt(4*7)=2sqrt7`

Answer 2

`sqrt(28) = 2sqrt(7)`

Explanation:

28 = 7 . `2^2`
`sqrt(28) = sqrt(7(2^2)) = 2sqrt(7)`