Question

Alex's work for the following quiz problem is as follows: Is Alex correct? if it's incorrect, what is the correct solution?

Answer 1

see explanation

Explanation:

`√(10)` and
`√(5)` cannot be simplified as they are already in simplest form.

Note that
`√(10)` +
`√(5)` ≠
`√(15)`

Thus

2
`√(10)` + 5
`√(5)` ← cannot be simplified any further