[" 12.Find the value of "k," so that the equation "2x^(2)+kx-5=0" and "x^(2)-3x-4=0" may have one root "],[" common."]

Find the value of k, so that the equation 2x^(2)+kx-5=0 and x^(2)-4x+4=0 may have one root common.

Find the value of k, so that the equation 2x^(2)+kx-5=0 and x^(2)-3x-4=0 may have one root in common.

Find the value of k, so that the equation 2x^(2)+kx-5=0 and x^(2)-3x-4=0 may have one root in common.

Find the value of k , so that the equation 2x^2+kx-5=0 and x^2-3x-4=0 may have one root in common.

Find those values of k for which the equations x^2-kx-21=0 and x^2-3kx-35=0 have a common root.

Find the value of lamda so that the equations x^(2)-x-12=0 and lamdax^(2)+10x+3=0 may have one root in common. Also, find the common root.

Find the value of lamda so that the equations x^(2)-x-12=0 and lamdax^(2)+10x+3=0 may have one root in common. Also, find the common root.

Find the value of lamda so that the equations x^(2)-x-12=0 and lamdax^(2)+10x+3=0 may have one root in common. Also, find the common root.

Find the value of lamda so that the equations x^(2)-x-12=0 and lamdax^(2)+10x+3=0 may have one root in common. Also, find the common root.

Find the value of lamda so that the equations x^(2)-x-12=0 and lamdax^(2)+10x+3=0 may have one root in common. Also, find the common root.