Question

How do you simplify `-2sqrt294`?

Answer 1

Start by seeing if there are factors of `294` which would allow us to simplify the radical
`294 = 2xx147`
`= 2xx7xx21`
`= 2xx7xx7xx3`

Therefore `sqrt(294) = 7sqrt(6)`
and
`-2sqrt(294)`
`=-14sqrt(6)`