Réponses

2013-02-24T17:48:24+01:00
Ex 1). A= (x+1)(x-3) A=x(2)-3x+1x-3 A=x(2)-2x-3 B= (2x-4)(x+2) B= 2x(2)+4x-4x-8 B=2x(2)-8
2013-02-24T18:15:13+01:00