P/S : \(x\inℤ\)hay \(x\inℕ\)?
+) Trường hợp \(x\inℕ\)
\(29⋮2x-1\Rightarrow2x-1\inƯ\left(29\right)=\left\{1;29\right\}\)
2x - 1 | 1 | 29 |
2x | 2 | 30 |
x | 1 | 15 |
+) Trường hợp \(x\inℤ\)
\(29⋮2x-1\Rightarrow2x-1\inƯ\left(29\right)=\left\{1;-1;29;-29\right\}\)
2x - 1 | 1 | -1 | 29 | -29 |
2x | 2 | 0 | 30 | -28 |
x | 1 | 0 | 15 | -14 |