7 2x 1 )= 3 4x 5 July 8, 2019 16 32 64 128 3x 5 )( 2x 7 )=( 3x 1 )( 2x 3 )+ 4x 7 4x 3x 5 6x 1 2x 3 3x 5 2x 7 )= 3 4x 1 )+ 5 2 8x 1 )( x 7 2x 3 )( 4x 5 8x 1 )( x 7 ≥ 2x 3 )( 4x 5 (- 1 2x 7 10 3 4x 1 5 3x (- 2x 7 )- 5 x 1 )( 4x 3 5 4x 1 )-( 2x 3 )(- 5x 7 2x 7 5 x 7 = 35
