Germany Math Olympiad__ Amazing Algebraic expression:❓////

[@leetrask6042]

Appallingly easy

[@SalmonForYourLuck]

In this equation x^2+5= 0 .... x is not equal to +-sqrt(5)... it is x^2=-5 så X= + - sqrt(-5) which is imaginary where sqrt(-1) = i so sqrt(-5) = sqrt(-1)*sqrt(5) = i * sqrt(5) which means x equals - + sqrt(5)*i