4 x 1 ) 5 7x 3 July 8, 2019 16 32 64 128 4 x 1 )+ 5 7x 3 3x 1 x 5 7x 4 3x 7x 4 2x 3 x 5 1 4 3 4 x )- 1 5 7x 1 7 5 x 7 = 35 5 x 7 x4 4 5 x 7
