jetpilotdds jetpilotdds 19-01-2018 Mathematics contestada How can x2 = 2x + 4 be set up as a system of equations? y = x2 − 2x + 4 y = x2 + 2x + 4 y = x2 y = x2 + 2x + 4 y = x2 + 2x y = x2 + 4 y = x2 y = 2x + 4