6x 1 7 2x 7 3 4 July 8, 2019 16 32 64 128 6x 7 )( 2x 3 )-( 4x 1 )( 3x 7 4 6) 2 7x - 1 3x + 3 6x = 2 6(7x+12)−12(5x−9) при x = 6x=6 6^7x-1 6