| x4+4x3+6x2+21x+8 | ||
∫ | ||
| x3+x2+4x+16 |
| x2+7x+40 | ||
∫(x+3)dx−∫ | dx | |
| x3+x2+4x+16 |
| 1 | ||
x=y− | ||
| 3 |
| 1 | 1 | 1 | ||||
(y− | )3+(y− | )2+4(y− | )+16=0 | |||
| 3 | 3 | 3 |
| 1 | 1 | 2 | 1 | 4 | ||||||
y3−y2+ | y− | +y2− | y+ | +4y− | +16=0 | |||||
| 3 | 27 | 3 | 9 | 3 |
| 11 | 398 | |||
y3+ | y+ | =0 | ||
| 3 | 27 |
| 11 | 398 | |||
(u+v)3+ | (u+v)+ | =0 | ||
| 3 | 27 |
| 11 | 398 | |||
u3+3u2v+3uv2+v3+ | (u+v)+ | =0 | ||
| 3 | 27 |
| 398 | 11 | |||
u3+v3+ | +3(u+v)(uv+ | )=0 | ||
| 27 | 9 |
| 398 | ||
u3+v3+ | =0 | |
| 27 |
| 11 | ||
3(u+v)(uv+ | )=0 | |
| 9 |
| 398 | ||
u3+v3+ | =0 | |
| 27 |
| 11 | ||
uv+ | ||
| 9 |
| 398 | ||
u3+v3=− | ||
| 27 |
| 11 | ||
uv=− | ||
| 9 |
| 398 | ||
u3+v3=− | ||
| 27 |
| 1331 | ||
u3v3=− | ||
| 729 |
| 398 | 1331 | |||
t2+ | t− | =0 | ||
| 27 | 729 |
| 199 | 40932 | |||
(t+ | )2− | |||
| 27 | 729 |
| 199−√40932 | 199+√40932 | |||
(t+ | )(t+ | )=0 | ||
| 27 | 27 |
| 1 | ||
y= | (3√−199+√40932+3√−199−√40932) | |
| 3 |
| 1 | ||
x= | (3√−199+√40932+3√−199−√40932−1) | |
| 3 |
| −199+√40932 | ||
u3= | ||
| 27 |
| −199−√40932 | ||
v3= | ||
| 27 |
| 398 | ||
u3+v3=− | ||
| 27 |
| 11 | ||
uv=− | ||
| 9 |
poodzieliłem ... i dałem sobie spokój