briannacharron briannacharron 02-06-2019 Mathematics contestada (98 POINTS) (PLEASE HURRY!)[1] x^2 - xy - x + y = [2] 1 - x - x^2 + x^3 =[3] xy + 1 + x + y = [4] x^2y + y^2x + x^2x + y^3 =
