58 2x 2 9x 2 61 5 3x y 6 July 8, 2019 16 32 64 128 58. 2x ^ 2 - 9x ^ 2 61.5-3x+v+6 58. 2x ^ 2 - 9x ^ 2 61 5- 3r+v+6 58. 2x ^ 2 61.5
