7xy x 3 3y 3 5x 2y 2 July 8, 2019 16 32 64 128 7xy x 3 3y 3 5x 2y 2 in standard form 7xy 3 - x 2 - 5xy 3 + 3yx 3 - 7xy 3 + 2x 2 (-7x 3y = 3 5x - 3y = 9
