Réponses

2013-02-17T19:25:12+01:00

delta = b² -4ac

et tu remplace ... -_-

(delta = 400² -4(12)(2500)

 delta = 160000-120000 = 40000 > 0

x1 = (400+V40000)/24   x2 = (400-V40000)/24

x1 = 25  x2 =25/3

 

2013-02-17T20:04:52+01:00

delta = b² -4ac

et tu remplace ... -_-

 = 400² -4(12)(2500)

 = 160000-120000 = 40000 > 0

x1 = (400+V40000)/24   x2 = (400-V40000)/24

 

x1 = 25                              x2 =25/3