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6 January 2007
- 23:0323:03, 6 January 2007 diff hist +175 Wikipedia:Reference desk/Mathematics →Quadratic simultaneous equations
- 21:4221:42, 6 January 2007 diff hist +20 Wikipedia:Reference desk/Mathematics →Quadratic simultaneous equations
- 21:2421:24, 6 January 2007 diff hist +545 Wikipedia:Reference desk/Mathematics Quadratic simultaneous equations