" Find the value of "k" so that equation "x^(2)+5kx+16=0" has no real roots."

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

Find the value of k so that the equation 2x^(2)-5x+k=0 has two equal roots.

Find the value of k so that the equation 2x^(2)-5x+k=0 has two equal roots.

If the equation x^(2)+5kx+16=0 has no real roots then

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

Find the value of k so that the equation 49x^(2) - kx -81 =0 has one root as the negative of the other.

If the equation x^(2)-kx+1=0 has no real roots then

find the values of k so,that the equation 3x^(2)+kx+2=0 has equal roots . also find the roots in each case.

Determine k so that the equation x^(2)-3kx+64=0 has no real roots.

Find the value (p) of k for which the equation x^(2) +5kx +16=0 has real and equal roots.