[" If "(x^(2)-x+1)" is a factor of "f(x)=ax^(3)+bx^(2)+cx],[+dwherea!=0" and "a,b,c,d" are real,then the "],[" real root of "f(x)=0" is "]

If (x-1)^(2) is a factor of ax^(3) +bx^(2) +c then roots of the equation cx^(3) +bx +a=0 may be

If (x-1)^(2) is a factor of ax^(3) +bx^(2) +c then roots of the equation cx^(3) +bx +a=0 may be

if x^2+x+1 is a factor of ax^3+bx^2+cx+d then the real root of ax^3+bx^2+cx+d=0 is :

if x^(2)+x+1 is a factor of ax^(3)+bx^(2)+cx+d then the real root of ax^(3)+bx^(2)+cx+d=0 is : (a) -(d)/(a)(B)(d)/(a) (C) (a)/(b) (D)none of these

If 2x^(3)+ax^(2)+bx+4=0 (a and b are positive real numbers) has three real roots, then

If f(x) = x^(3) + bx^(2) + cx +d and 0lt b^(2) lt c .then in (-infty, infty)