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

For which value of k will the equations x^@-kx-21=0 and x^2-3kx+35=0 have on common root

For what value of k will be the equations x^(2)-kx-21=0 and x^(2)-3kx+35=0 have one common root.

For which value of k will the equations x^(2)-kx-21=0 and x^(2)-3kx+35=0 have one common root ?

The value(s) of k which the equation x^2-k x-21=0 a n d x^2-3kx+35=0 has a common root, may be: (a) +-1 (b) +-2 (c) +-4 (d) None of these

The value(s) of k which the equation x^2-k x-21=0 a n d x^2-3kx+35=0 has a common root, may be: (a) +-1 (b) +-2 (c) +-4 (d) No of these

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 the values of k for which the equation x^(2)+5kx+16=0 has no real roots.