7x 3 x 14 )-( 2x 2 19 July 8, 2019 16 32 64 128 (7x - 3)(2x + 1) - 14x ^ 2 якшо x = 8 (7x - 3)(2x + 1) - 14x ^ 2 якшo x = 8 2x 7 2 7x ≥-14
