Réponses

2014-01-26T10:45:46+01:00
Factoriser H=(2x+4)(x-2)+(x+2)(x+3)
H = 2*(x+2) (x-2) + ( x+2) (x+3)
H = (x+2) (2x-4) + (x+2) (x+3)
H = (x+2) (2x-4 +x +3)
H = ( x+2) (3x -1)