a = 2 (slider from -5 to 5, step 0.01)
b = -3 (slider from -5 to 5, step 0.1)
c = -2 (slider from -5 to 5, step 0.1)
Δ: b^(2) - (4 * (a * c))
S: (((-b)) / ((2 * a)), ((-Δ)) / ((4 * a)))
f(x) = (a * x^(2)) + (b * x) + c
texte1: "△ = b² - 4 a c = " + (LaTeX[Δ]) + ""
texte2: "f(x) = " + (LaTeX[f]) + ""
A, B = Intersect(f, xAxis)
Curve(x) = NaN