9 3 5 4 2 4 July 8, 2019 16 32 64 128 9 2 2 3 x 7 4 5 4 9 4 2 4x 4 3 )+ 5 2x W 4 9 )(- 2 3 )=- 4 5 5x 9 4 3x 5 4 2 3 48 5 2 3 x 9 4
