4 5 x 3 20 July 8, 2019 16 32 64 128 4 5 х 20 3 3 4 2 5 x 3 20 5 2 x )- 3 4 2x )= 20 4 3 x+ 5 2 )= − 20 9 X 5 2x 4 10x 3 20x 2 9x 18 1 5 4 5 x 3 20 X 4 5x 3 20x 16 4 2 5 6 10 x 1 3 20 4 5 x 3 4 x 200 4 5 x 3 10 x 20 7 5 4 2 )/ 3 x 20 10 3 8 4 5 x 20 4 5 4 3 x 9 20 4 5 1 2 3 x 41 20 3 2x 4 )= 5 x 1 )- 20