7 x )( 5x 1 )= 0 July 8, 2019 16 32 64 128 7 x 1 5x при x =- 0 8 X 7 5x 3 3x 1 0 2x2 5x 7 )( x 1 )= 0 2 5x 7 )( 1 x )= 0 2x 7 )( x 5 )( 5x 1 )= 0 5x y 7 x y 1 0 5x x 1 )- 7x 7 0 5 x 7 = 35 7 x 10 (5/7)^x=1 4