Find the value of `K` for which following equation has real and equal roots `(i) 4x^2 + Kx+ 9 = 0`

find the value of K for which following equation has real and equal roots x^(2)-2(k+1)x+k^(2)=0

Find the value of k for which equation 4x^(2)+8x-k=0 has real and equal roots.

Find the values of k for which the following quadratic equation has real and equal roots: x^(2)+k(2x+k-1)+2=0

Find the value of k for which given quadratic equation has real and equal roots: 4x^2-3kx+1=0

Find the value of k for which the given equation has real and equal roots: 2x^2-10 x+k=0 9x^2+3k x+4=0

Find the value (s) of k for which the given quadratic equations has real and equal roots: (i) 9x^2+8kx+16=0 .

Find the value (s) of k for which the given quadratic equations has real and equal roots: (i) 9x^2+8kx+16=0 .

Find the value (s) of k for which the given quadratic equations has real and equal roots: (i) 9x^2+8kx+16=0 .

Find the value of k for which the following equation has equal roots : x^(2)+4kx+(k^(2)-k+2)=0

Find the values of k for which roots of the following equations are real and equal: (i) 12x^(2)+4kx+3=0 (ii) kx^(2)-5x+k=0 (iii) x^(2)+k(4x+k-1)+2=0