For what values of b, the roots of `x^(2) +bx + 9 =0`, are equal ?

For what value of m equation 4x^(2) + 6mx + 9=0 have equal roots

If the sum of the roots of x^(2) + bx + 1 = 0 , is equal to the sum of their squares, then b =

If the sum of the roots of x^(2) + bx + 1 = 0 , is equal to the sum of their squares, then b =

For what real values of k the equation 9x^(2)+8Kx+16=0 have real and equal roots?

What is the value of C, if ax^2 + bx +c =0 has equal roots ?

If the ratio of the roots of the equation ax^(2)+bx+c=0 is equal to ratio of roots of the equation x^(2)+x+1=0 then a,b,c are in

A value of b for which the equations : x^(2) + bx - 1= 0, x^(2) + x + b = 0 Have one root in common is :

37. If alpha and beta are the roots of ax^(2)+bx+c=0, then the value of (a alpha+b)^(-2)+(a beta+b)^(-2) is equal to

If the one root of x^2+bx+12=0 is 2 and roots of x^2+bx+q=0 are equal , then find the value of q.