T454

a = -0.3 (slider from -5 to 5)
f(x) = If[0 ≤ x ≤ 2, ((a * x) * (x^(2) - 4)), 0]
teksti1 = LaTeX(f, true, true)
g(x) = ((a * x) * (x^(2) - 4))
ala = Integral(f, 0, 2)