Question

How do you add `sqrt50 - sqrt8`?

Answer 1

The answer is `3sqrt(2)`

If given: `sqrt(50) - sqrt(8)`

We can split the numbers inside the radical into factors:
`sqrt(25*2) - sqrt(4*2)`

Since `25` and `4` are respectively the squares of `5` and `2`.
`5sqrt(2) - 2sqrt(2)`

Combining like terms:
`3sqrt(2)`

I hope that was helpful.