równanie 3 stopnia (x2+x-6)(x+1)=0

( x² + x - 6)(x +1) = 0 x² + x - 6 = 0 Δ = 1 -4*(-6) = 1 + 24 = 25 √Δ = √5 = 5 x1 = [-1 -5]/2 = -6/2 = -3 x2 = [-1 +5]/2 = 4/2 = 2 ( x² + x - 6)(x +1) = (x +3)(x+1)(x -2) = 0 Pierwiastki tego równania to : x1 = -3 x2 =2 x3 = -1