6x 7 3 8x 4 July 8, 2019 16 32 64 128 6x 7 4x 3 3x 16 8x 4 3 8x 5 )= 4 (- 7 6x 3 8x 4 )- 7 6x 2 2x 1 Y 12x 7 6x 5 8x 3 4x 3 8x 5 )= 4 6x 7 − 13
