Объяснение:
23−42+−11
23−42+1−1
2x^{3}-4x^{2}+1x-12x3−4x2+1x−1
23−42+−1
23−42−4−1+5
2x^{3}-4x^{2}{\color{#c92786}{-4x}}-1+{\color{#c92786}{5x}}2x3−4x2−4x−1+5x
23−42+1−1
23−32−4−1−2+5
2x^{3}{\color{#c92786}{-3x^{2}}}-4x-1{\color{#c92786}{-x^{2}}}+5x2x3−3x2−4x−1−x2+5x
23−42−4−1+5
23−32−4+5−2+5−6
2x^{3}-3x^{2}-4x+{\color{#c92786}{5}}-x^{2}+5x{\color{#c92786}{-6}}2x3−3x2−4x+5−x2+5x−6
23−32−4−1−2+5
2x³ - 3x² - 4x + 5 - x² + 5x -6 = 2x³ - 4x² + x - 1
