3 2x 1 )= 9x July 8, 2019 16 32 64 128 3 2x 1 )= 9x 27 3 2x 1 )= 9x 6 2x 3 x 1 9x 5 4x 9x 3 2x 1 )= 15 3 x 5 )- 7 2x 1 )=- 9x 20 3 2x 2 9x 2 1 9 3 2x 5 1 9x 2x 3 x 1 9x 2 6x 3 2x 9 )+ 9x 1 x 3 2x 4 9x 1 (- 2x 3 10 9x 1 2 2x 1 3 9x81 7 2x 3 9x 1 7 1 2x 9x 3 10 2 3 1 2x 5 9x