If the equation `x^(2) +2(k+1)x+9k-5=0` has only negative roots, then find the value of k.

If the equation 2x^(2) + (a+3)x + 8 = 0 has equal roots, then one of the values of a is

If the roots of the equation 12x^(2)-mx+5=0 are in the ratio 2:3 , then find the value of m.

If the equation x^2+kx+k =0 has only one solufion, find the possible values of k.

If the equation 4x^2- 5x + k = 0 has two equal solutions. Find the value of k.

If the roots of the quadratic equation m x^(2) - n x + k = 0 are tan 33^(@) and tan 12^(@) , then the value of (2m + n + k)/(m) is equal to