Réponses

  • Utilisateur Brainly
2014-10-11T17:10:47+02:00
A= 3y (2x - 5)
A= 6xy - 15y

B= (3x + 2) (2x + 1)
B= 6x² + 3x + 4x + 2
B= 6x² + 7x + 2

C= (5t + 3) ( 3t - 2)
C= 15t² - 10t + 9t - 6
C= 15t² - t - 6

D= (7y -3) (3 - 2y)
D= 21y - 14y² - 9 + 6y
D= - 14y + 27y - 9
2014-10-11T17:11:52+02:00
A= 3y (2x - 5)
a = 6xy -15y

B= (3x + 2) (2x + 1)
b = 6x²+3x+4x+2
b = 6x² +7x +2

C= (5t + 3) ( 3t - 2)
c = 15t² -10t +9t -6
c = 15t² -t -6

D= (7y -3) (3 - 2y)
d = 21y -14y² -9 +6y
d = -14y² +27y -9