Let P(x)=x3+ax2+bx+cP(x) = x^3 + ax^2 + bx + cP(x)=x3+ax2+bx+c have roots α,β,γ\alpha, \beta, \gammaα,β,γ such that α+β+γ=0\alpha+\beta+\gamma=0α+β+γ=0 and α2+β2+γ2=1\alpha^2+\beta^2+\gamma^2=1α2+β2+γ2=1. What is the value of bbb?
-1/2
1/2
-1
1