58 2x 2 9x 2 5 3x y 6 July 8, 2019 16 32 64 128 58 2x 2 9x 2 61 5 3x y 6 58. 2x ^ 2 - 9x ^ 2 61 5-3r 58. 2x ^ 2 - 9x ^ 2 61 5-3r+y+6 58. 2x ^ 2 - 9x ^ 2 5-3x+y+6 61 5