if you are using the method of completing the square to solve the quadratic equation X squared-11 X -4 equals zero which number would you have to be added to complete the square

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.