Question

How do you simplify `-4sqrt28`?

Answer 1

`-8` `sqrt7`

Explanation:

`-4` `sqrt28` can also be written `as`
`rArr` `-4` `sqrt(7*4)`
`rArr` `-4` `sqrt(7*2*2)`
`rArr` `-4` `sqrt(7*2^2)`
`rArr` `-4` `sqrt(7)` `sqrt(2^2)`
`rArr` `-4` `sqrt(7)*2`
`rArr` `-8` `sqrt(7)`
`so` `the` final `ans` `is`:- (`-8` `sqrt(7)`)