4 7 5x 2 July 8, 2019 16 32 64 128 4 7 5x 2 )= 748 4 7 5x 2 )= 348 4 5x 7 2x 4 7 5x )-( 12 20x 4 x 7 )- 5x 2 4 5x 7 )= 10x 2 4 7 5x 2 )= 1 5x 3 4 5x 7 )- 3x 12x 27 4 5x 7 5 x 2 4 5x 2 7 9 1 8 2x 4 3 5x 7 2 5x 4 x 7 )= 2 3x 6 20 7 5x 4 )= 6 Y 4 2x 7 )/ 5x 3 4 5x 2 7x 7