1 2x 9 2 July 8, 2019 16 32 64 128 1 2x 9 =- 25 1 2x 9 =- 2 3x 1 2x 9 20 2x 1 9 3x 2 10 1 2x 9 2x 5 1 2x )- 9 3x 24 2 3x 1 )-( 9 2x )= 25 2x 1 x 2 9 27 1 2x 1 9 2 x 9 2x 1 27 3 2x 1 9 x 2 9 2x 1 27 x 3 2x 9 1 2 3 2x 1 )= 2x 9
