Réponses

2014-10-05T19:16:12+02:00
A=(5-2V3)²-(10+V3)(V3-30)
a = 25 -20V3  +12 - (10V3-300+3-30V3)
a = 25 -20V3+12 -( -20V3-297)
a = 25 -20V3+12 +20V3+297
a = 25+297+12
a = 334