X 4 17x 2 72 July 8, 2019 16 32 64 128 X 4 17x 2 72 0 X 4 17x 2 72 factor X 4 2x 3 17x 2 18x 72 17 x 1 17 cdot x+4 - x-4 17⋅∣x+4∣−∣x−4∣ при x=-8x=−8 17 4 x 17 4