7 5 x 4 2 July 8, 2019 16 32 64 128 5 7 х 4 2 1 5 7 x 4 2 3 7 x 4 )= 5 2x 3 )+ 11 1 7 2 5 x 4 2 5 x 4 2x 7 7 - 5x 4 2x 2 x 7 * 5 x 4 1250 7 x 4 )+ 5 3 2x 4 7 x )- 5 2 =- 6 3 7 3x 4 5 x 2 5 4 x 7 2 1 9 4 5 x 7 )= 20 7 4 x )- 5 3x 20 4x 9 7 5 8 x 4 5 2 X 5 x 4 )= 2 2x 7 )+ 6