4x 5 2x 7 1x 1 July 8, 2019 16 32 64 128 4x 7 2 2x 5 )( x 1 )=- 1 2x-5 + 4x-7 -16 при x=-1 4) 5x - 7 = 2 - 4x 7-3x =1-5x
