6 1 2 9x 4 July 8, 2019 16 32 64 128 1 2 4 9x 5 6 2 3 9x 6 )- 1 2 8x 4 1) - 9(6x + 1) = - 45(2x + 2 6) 6 1/9 x 4 6xy - 4y + 6 - 9x
