Réponses

2014-05-28T21:04:38+02:00
5x(3x+4)(4x+10)≤0
x (2 x+5) (3 x+4)≤0
10 x (2 x+5) (3 x+4)≤0
x (6 x²+23 x+20)≤0
60 x³+230 x²+200 x≤0