5 2x 1 )= 9x 2 July 8, 2019 16 32 64 128 3 x 5 )- 7 2x 1 )=- 9x 20 5 left 2x 1 right )= 9x 2 2x 1 2x2 9x 5 2x 1 )( 9x 2k )- 5 x 2 )= 40 6x 1 )( 2x 2 9x 5 9x 5 2x 3 )= 1 2x 4x 5 2x 1 5 9x 1 2x X 5 )( 9x 2 2x 1 2 9x 5 )+ 4 2x 1 )= 2 7x 6 5 2x-1 9