3 4x 1 2 3 7 July 8, 2019 16 32 64 128 3 4x 1 )= 2 5x 7 4x 3 3 1 5 7 2 3 4x 1 2 7 8 3 4x 3 )+ 2 7x 1 3 4x 1 3 7 8x 1 2 2 3 4x 7 )- 3 1 2x 5 4 1/2 + 1 1/3