# Is the square root of 5 plus the square root 5 equal to the square root of 10?

##### 1 Answer

Sep 9, 2015

No:

#### Explanation:

In the above answer, I use

**Generalisation**

Suppose

Under what circumstances would we expect the following:

Actually the only kind of functions that behave like this are all *linear* functions which take the form:

In addition

The function