# Thread: [SOLVED] Simple Issue: Absolute Value

1. ## [SOLVED] Simple Issue: Absolute Value

So the problem is $$abs(3-sqrt(17))$$.

What I do know is that the result should be a positive 1.2311, what I don't know is can I represent that with a square root or do I have to convert it to a decimal? I am stuck on how to represent this.

2. Do you understand that $|a-b|=|b-a|?$
So $|3-\sqrt{17}|=|\sqrt{17}-3|=\sqrt{17}-3$.

3. Well I do now! That makes a lot more sense.