T445

b = 0 (slider from -5 to 5)
c = -3 (slider from -5 to 5)
d = 5 (slider from -5 to 5)
f(x) = x^(3) + (b * x^(2)) + (c * x) + d
f' = Derivative(f)
teksti1 = LaTeX(f, true, true)
teksti2 = LaTeX(f', true, true)