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