I created my first simple extension (for testing).

I have seen this extension: [Extension] Math Formulas [V3]

Yes, this returns x1, which of course can also be negative. But what about x2 ?

I used the Extension Template Repository: Extension Template Repository

(*of course, not a big deal, but for the first time*)

de.BodyMindPower.quadraticEquation.aix (5.6 KB)

**UPDATE** v2: de.BodyMindPower.quadraticEquation_v2.aix (5.7 KB)

I have simplified the extension following @vishwas advice: