Réponses

2014-01-28T20:49:30+01:00
(3x-1)-(2x-3)+(x+2)(x-5)
=3x-1-2x+3+x²-5x+2x-10
=x²-2x-8
2014-01-28T20:51:15+01:00
(3x-1)-(2x-3) + (x+2)(x-5)
3x-1 -2x +3 +(x² -5x +2x -10)
3x -1 -2x +3 +(x² -3x -10)
3x -1 -2x +3 +x² -3x -10
-2x +x² -8