Question

X3(do potegi 3) - 4x2 (kwadrat) - 3x +12 =0

Answer 1

X³ - 4x² - 3x +12 =0
x²(x-4)-3(x-4)=0
(x²-3)(x-4)=0
(x-√3)(x+√3)(x-4)=0
x=√3, x=-√3, x=4