10 (- x 4 )- 8x July 8, 2019 16 32 64 128 10 x 4 8x x 2 4x 10 x 8x 4 8x 10 4 x 5 5 2 x 4 8x 10 6x 10 x 1 4 8x 4 10 x 4 8 10 x 10 x 10 8 x 10 x 10 40