If using the method of completing the square to solve the quadratic equation x2-6x-260x and 82032 and 8203 and 8203 and minus6x and minus260 which number would have to be added to complete the square?

Answer 1

To complete the square for the quadratic equation (x^2 - 6x), you take half of the coefficient of (x) (which is (-6)), square it, and add that value. Half of (-6) is (-3), and squaring it gives (9). Therefore, you would need to add (9) to complete the square.