" 13.Find the value of "'x^(*)" if the equation "2x^(2)+bx+3=0" have equal roots."

Find the value of k if the equation (k+1)x^(2)+2(k+3)x+(k+8)=0 as have equal roots.

If 2 is a root of the equation x^(2) + kx +12=0 and the equation x^(2)+kx +q=0 has equal roots, find the value of q.

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

Find the valve of 'a' for which the following equations have equal roots. x^(2)+(a+3)x+a+6=0

Find value of k if the equation having equal roots x^(2)-2x(1+3x)+7(3+2x)=0

Find the values of m for which the following equations have equal roots ? (m+1)x^(2)+2(m+3)x+(m+8)=0.

Find the values of m for which the following equations have equal roots ? (3m+1)x^(2)+2(m+1)x+m=0

If 3 is a root of the quadratic equation x^(2)-x+k=0 find the value of p so that the roots of the equation x^(2)+k(2x+k+2)+p=0 are equal.