If `a,b,c,d ` are real and no two of them aresimultaneously zero, then the equation `(x^2 + ax – 3b) (x^2 – cx+b) (x2 – de+2b) = 0 ` has

If a, b, c, d are real numbers such that (3a + 2b)/(c+d)+3/2=0 then the equation ax^3 + bx^2 + cx + d =0 has

If a,b,c are real numbers such that (3a+2b)/(c+d) + ( 3)/( 2) = 0 then the equation ax^(3) + bx^(2) + cx + d = 0 has

If 1,2,3 and 4 are the roots of the eqaution x^(4) + ax^(3) + b x^(2) + cx + d = 0, then a + 2b + c =

If a,b,c,d are real numbers such that (3a+2b)/(c+d)+(3)/(2)=0 then the equation ax^(3)+bx^(2)+cx+d=0 has

If the roots of the equation x^2+2c x+a b=0 are real and unequal, then the roots of the equation x^2-2(a+b)x+(a^2+b^2+2c^2)=0 are: (a) real and unequal (b) real and equal (c) imaginary (d) rational

If a ,b ,c ,d in R , then the equation (x^2+a x-3b)(x^2-c x+b)(x^2-dx+2b)=0 has a) 6 real roots b) at least 2 real roots c) 4 real roots d) none of these