Cameronstoneraiders Cameronstoneraiders 19-11-2019 Mathematics contestada 6. Which is equivalent to the following expression? (2x2 + 4xy - y2) + (x2 + 3xy - y2). 3x2 – 7xy – 2y2 3x4 + Txy – 2y4 3x2 + Txy – 2y2 2x2 – 7xy + 2y2