Question

How do you simplify `9sqrt4 - 6sqrt24 + sqrt36`?

Answer 1

`= 18 - 12sqrt(6) + 6`
`= 24 - 12sqrt(6)`
`~~ 24 - 12(2.449) ~~ 24 - 29.393 ~~-5.393`

Explanation:

`sqrt(4)` is `2`
`sqrt(36)` is `6`
`6sqrt(24) = 6 sqrt(6xx4)= 6sqrt(4)sqrt(6) = 12sqrt(6)`