4 1 3 7x 3 July 8, 2019 16 32 64 128 4 7x 1 3 2x 3 10x 3 3x 4 )+ 1 − 3 7x 3 (- 1 3x 3 5 4 7x 3 4 3x 2 7x 3 1 4 7x 1 4 2x 3 3 3x 5y 2 4 3 7x 3 1 2 12 4 7x 2 1 3 )- 1 3 4 2x 3 )+ 7x 5 1 3x )- 17 2 4 5x 1 3 7x 3 1 8 4 x 3 2x 1 30 7x 1 5x 1 3x 4 9x 1 3 7x 3 3 7x 4 1 5 7x 3 1 2x 4 3x 3 7x 4 x 3 ) + 1 16