If `a,b,c epsilon {1,2,3,4,5},` the number of equations of the form `ax^2+bx+c=0` which have real roots is (A) 25 (B) 26 (C) 27 (D) 24

[ If a,b in{1,2,3,4} the number of quadratic equation of the form ax^(2)+bx+c=0 which have non-real complex roots is: [ (a) 27, (b) 35 (c) 52, (d) 56]]

If the equation f(x)= ax^2+bx+c=0 has no real root, then (a+b+c)c is (A) =0 (B) gt0 (C) lt0 (D) not real

If a, b, c are positive and a = 2b + 3c, then roots of the equation ax^(2) + bx + c = 0 are real for

If a, b and c are positive real and a = 2b + 3c , then the equation ax^(2) + bx + c = 0 has real roots for

If a,b,c are positive real numbers.then the number of real roots of the equation ax^(2)+b|x|+c=0 is

If the equation ax^(2) + 2 bx - 3c = 0 has no real roots and (3c)/(4) lt a + b , then