Soluție - PolynomialRootFinder

$$factors\left(\left|a_0\right|\right)=1,2,3,6$$

$$factors\left(\left|a_n\right|\right)=1,2,3,6$$

$$x=+/-p/q=-1/6,1/6,-1/3,1/3,-1/2,1/2,-2/3,2/3,-1,1,-3/2,3/2,-2,2,-3,3,-6,6$$

$$P\left(-1/6\right)=3,410494$$

$$P\left(1/6\right)=6,773148$$

$$P\left(-1/3\right)=0$$

$$P\left(-1/6\right)=20,462963$$

$$P\left(1/6\right)=13,546296$$

$$P\left(-1/3\right)=20,740741$$

$$P\left(1/3\right)=7,407407$$

$$P\left(-1/2\right)=18,75$$

$$P\left(1/2\right)=0$$

$$P\left(-1/6\right)=-30,694444$$

$$\left(x+0,333333\right)\left(6x^4+9x^3-36x^2-21x+18\right)=0$$

$$\left(x-0,5\right)\left(6x^3+12x^2-30x-36\right)=0$$

$$\left(x+1\right)\left(6x^2+6x-36\right)=0$$

$$x=-3,2$$