Timeline for 17 camels trick
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 16, 2019 at 20:04 | comment | added | Fedor Petrov | Adding expressions like $x-x$ is used, for example, in factorizations, like $x^4+4=x^4+4x^2+4-4x^2=(x^2+2)^2-(2x)^2=(x^2-2x+2)(x^2+2x+2)$. | |
| S Feb 16, 2019 at 19:22 | history | answered | Manfred Weis | CC BY-SA 4.0 | |
| S Feb 16, 2019 at 19:22 | history | made wiki | Post Made Community Wiki by Manfred Weis |