Réponses

2014-09-05T20:26:19+02:00
A = 7x³ + 14x² + 21x
A = x (7x² + 14x + 21)

B = x²y - xy² + 2x²y²
B = xy (x - y + 2xy)

C = x(3y-4) + 4(3y-4)
C = (3y-4)(x+4)