" Q23.Show that the equation "x^(2)+6x+6=0" has real roots and solve it."

Show that the equation x^(2)+6x+6=0 has real roots ad solve it.

Show that the equation x^(2)+5x-6=0 has real roots.

Show that the equation x^(2)+5x-6=0 has real roots.

Show that the equation 2x^(2)-6x+7=0 has no real root.

Show that the equation 2x^(2)-6x+3=0 has real roots and find these roots.

Show that the equation x^(2)+ax-4=0 has real and distinct roots for all real values of a .

For what values of k, the equation kx^(2)-6x-2=0 has real roots?

Without actually solving show that the equation x^(4)+2x^(3)-2=0 has only one real root in the interval (0,1) .

Show that the equation x^2+a x-4=0 has real and distinct roots for all real values of a .