3 x 1 5 )= 7 2 July 8, 2019 16 32 64 128 3 x 5 )- 7 2x 1 )=- 9x 20 3x 1 5 7 2 3 x 7 )= 5 2x 1 3 2 9 x 1 5 7 4 2 3 x 1 5 7 3 1 5 x 2 7 8 3 5 6 х 1 7 23 3 x 1 )( x 7 )-( 2x 5 2 1 3 x 2 5 =- 7 15 15 x 1 3 )- 5x 7 x 5 7 )+ 20 1 7 5 21 x 7 3 0 3 7 2 x 1 5 2 3 x 1 5 7 10 3 3x 5 7 2x 1 1 7 5 x 3 20