X 3 7x 2 15x 9 x 1 July 8, 2019 16 32 64 128 X 1 is a factor of p x )= x 3 7x 2 15x 9 ((x ^ 3) ^ 7 * x ^ 2)/(x ^ 15) 3 7 15 x x − ⋅− − при x = −7
