| ⎧ | 10x2+7xy+y2=5 | |
| ⎩ | 5x2+11xy+2y2=1 | , |
| ⎧ | (2x+y)(5x+y)=5 | |
| ⎩ | (5x+y)(x+2y)=1 | . |
| 2x+y | |
=5, | |
| x+2y |
| 1 | ||
y=− | x. | |
| 3 |
| 9 | ||
x2= | ||
| 14 |
| 3 | 3 | |||
x1= | , x2=− | |||
| √14 | √14 |
| 1 | ||
y=− | x | |
| 3 |
| 1 | 1 | |||
y1=− | , y2= | . | ||
| √14 | √14 |
| 5^2 | 52 |
| 2^{10} | 210 |
| a_2 | a2 |
| a_{25} | a25 |
| p{2} | √2 |
| p{81} | √81 |
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