If using the method of completing the square to solve the quadratic equation x^2-10x-20=0 which number would have to be added to "complete the square"?

Bis the answer! hope this

Ifound this on google “a skewed (non-symmetric) distribution is a distribution in which there is no such mirror-imaging. a "skewed right" distribution is one in which the tail is on the right side. a "skewed left" distribution is one in which the tail is on the left side. the above histogram is for a distribution that is skewed right.” i hope this you for what your looking for

Answers4.) -1/205.) -1/406.) -55/127.) -3/4