7x 3 19 12 5x 2 11 6 July 8, 2019 16 32 64 128 7 - 11x 9x - 2(5x + 7) 6-x 2(1-4x)-3(1-3x) 2) 7 - 11x 9x - 2(5x + 7) 6-x 2(1-4x)-3(1-3x) 6(7x+12) - 12(5x - 9) 6(7x+12)−12(5x−9) при x = 6x=6
