Réponses

2014-04-15T10:51:39+02:00
F=(2x+5)(x+5)(x+5)=(2x+5)(x+5)²
F=(2x+5)(x²+10x+25)
F=2x³+20x²+50x+5x²+50x+125
F=2x³+25x²+100x+125

si x=3
F=(2*3+5)(3+5)(3+5)=11*8*8=11*64=704