X 5 x 7 3 July 8, 2019 16 32 64 128 X 5 )( x 7 )=- 35 X 5 7 )/( x 3 1 X 5 7 x 3 9 X 5 x 3x 7 X 5 x 7 4 3 5 x 7 x 30 X 5 2 x 7 3 X 2y 5 x 3y 7 X 5 )( x 2 3x 7 X 3 )+( x 5 )-( 7 3x 6 x 5 7 x 3 3 x 5 )+ 7 5x 3 Х 4 5 х 3 7 5 x 20 )= 7 x 30 5 x 7 )= 3 x 4 )- 27