Solve the equation. 3x cubedplus23x squaredplus40xequals0 Question content area bottom Part 1 A.StartSet negative 5 comma negative eight thirds comma 0 EndSet nbsp StartSet negative 5 comma negative eight thirds comma 0 EndSet nbsp B.StartSet 5 comma eight thirds EndSet nbsp StartSet 5 comma eight thirds EndSet nbsp C.StartSet 0 comma 5 comma eight thirds EndSet nbsp StartSet 0 comma 5 comma eight thirds EndSet nbsp D.StartSet negative 5 comma negative eight thirds EndSet nbsp StartSet negative 5 comma negative eight thirds EndSet nbsp