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