If a,b,c are positive numbers in A.P,then roots of the equation `ax^(2)-4bx+c=0` are

If a+b+c=0 then roots of the equation 3ax^(2)+4bx+5c=0 are

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

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

If the roots of the equation ax^(2)+bx+c=0 are equal then c=?

If a,b,c are in A.P. then the roots of the equation ax^(2)+2bx+c=0 are

If a, b, c are positive real numbers such that the equations ax^(2) + bx + c = 0 and bx^(2) + cx + a = 0 , have a common root, then

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