12 2x 5 =- 1 July 8, 2019 16 32 64 128 2x 5 12 15 5 2x 1 12 x 5 4 12 2x )= 13 20 4 2x 5 )= 14x 12 17x 3 x 12 2x 5 3x 5 2x 1 )= 12 12 5 2x )- 10 12 5 2x 1 4x X 12 2x 5 18 12 2x 5 )= 14 2x 2 12 6x 5 2x 17 10x 12 5 2x 1 12 x 2 )- 5 2x 1 (- 11 12 2x 5 2 1 4 6x 12 2x 5 4x 17