12 3x2 5x 8x 3x2 0 July 8, 2019 16 32 64 128 12 + x = 5 х 8 12 - (3x ^ 2 + 5x) + (- 8x + 3x ^ 2) = 0 12 x - 5 x - 8 = 8 + 7 x
