If `x^2 -ax + b = 0` where `a, b in N` has real and distinct roots, then `a_min+b_min =`

The equation |x-a|-b|=c has four distinct real roots,then

All roots of the cubic x^(3)+ax+b=0 (a,b in R) are real and distinct, and b>0 then

If a, b in R and ax^2 + bx +6 = 0,a!= 0 does not have two distinct real roots, then :

If a, b in R and ax^2 + bx +6 = 0,a!= 0 does not have two distinct real roots, then :

If a, b in R and ax^2 + bx +6 = 0,a!= 0 does not have two distinct real roots, then :

If a, b in R and ax^2 + bx +6 = 0,a!= 0 does not have two distinct real roots, then :

Consider the quadration ax^(2) - bx + c =0,a,b,c in N which has two distinct real roots belonging to the interval (1,2). The least value of b is

If ax^(2)-bx+5=0 does not have two distinct real roots, then find the minimun value of 5a+b.