If P(x)=x3+ax2+bx+cP(x) = x^3 + ax^2 + bx + cP(x)=x3+ax2+bx+c has roots in arithmetic progression and P(0)=−6P(0) = -6P(0)=−6 and P(1)=0P(1) = 0P(1)=0, what is the middle root?
1
2
3
0