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