For P(x)=x3+px+qP(x) = x^3 + px + qP(x)=x3+px+q with roots r1,r2,r3r_1, r_2, r_3r1,r2,r3, what is r1+r2+r3r_1 + r_2 + r_3r1+r2+r3?
000
−p-p−p
ppp
−q-q−q