5y 2 9 2y 3 2 July 8, 2019 16 32 64 128 2y 3 5y 2 7 9 2y 3 4x 9 )- 2 2y 8 )+ 5y 2x 17 5 9y+2 3y 5y = 2y + 9 5) 2y ^ 2 + 9y + 9 = 0