5x 6 3 4x 12 July 8, 2019 16 32 64 128 5x 6 2 3 4x 12 5x 6 3 - left 4x 12 right 6 (- 5x 1 )- 3 4x 12 5x 6 3 x 8 4x 3 12 4x 3 12x 2 5x 6 5 4x3 6
