# List all of the the restricted values sqrt 2x - 5?

##### 1 Answer

Apr 2, 2017

Assumption: the question is:

Written in set notation as

In this context the rounded brackets mean 'not including'. I have seen it written as:

#### Explanation:

To force the mathematical formatting you use the hash symbol at the beginning and end of the 'maths bit'.

I wrote the form

For the numbers to stay a belong to the set of 'Real numbers' you need to make sure that

add 5 to both sides

divide both sides by 2

So the restricted value are all those that do not comply with