15 4 7 x 3 2 7 6 1 7 July 8, 2019 16 32 64 128 15 4 7 х )+ 3 2 7 6 1 7 3 7 15 x x − ⋅− − при x = −7 15 - 4(7 - x) = 11 7/15 x 3
