softball jhon is scheduling the games for a softball league to find the number of games.he needs to schedule he uses the equation of one-half n2-one half n,where g represents the number of gaems needed for each team to play each other team exactly once and n represents the number of team.write this equation in factorer form .how many games are needed for 7 teams to play each other exactly 3 times?

Question

softball jhon is scheduling the games  for a softball league to find the number of games.he needs to schedule he uses the equation of one-half n2-one half n,where g represents the number of gaems needed for each team to play each other team exactly once and n represents the number of team.write this equation in factorer form .how many games are needed for 7 teams to play each other exactly 3 times?