quadratic equation.
please solve it

Answer:
×^3+×+(1/2)^2=(1/2)^2+6
×^3+×+1/4=1/4+6
4(×^3)+4(×)=+4(1/4)+4(6)
4×^3+4×+1=1+24
8×^3+1=25
8×^3=25-1
8×^3=24
×^3=24/8
×^3=3
×=1