a x^2 + b x + c = 0

a = 2
b = 1
c = -1
f(x) = a * x^(2.0) + b * x + c
N_1, N_2 = Intersect(f, xAxis)
Text1: "1. Lösung = " + (x(N_1))
Text2: "2. Lösung = " + (x(N_2))