4 2x − 7 5 9 July 8, 2019 16 32 64 128 17 5 2x 9 )= 4 2x 7 4 2x 7 )- 5 4x 9 3 5x 1 4 3 2x 7 5 9 4x 9x 4 )- 5 2x 7 7 2x 3 4 9x 5 5 2x 7 )- 1 4 x 5 )+ 9 9 2 5 4 7 2x 5 8 3x 7 4 2x 5 6 6x 9 12
