Réponses

2014-05-04T12:04:42+02:00
Bonjour

6x -12 = 6(x -2)
7y +21 = 7(y +3)
9a -18 = 9(a -2)
-36 +6 = 6 ( -6 +1) = 6(-5)
z² -5z = z (z -5)
2c² -3c = c(2c -3)
Meilleure réponse !
  • Utilisateur Brainly
2014-05-04T12:05:58+02:00
Exercice 44 : Factoriser

a) 6x - 12
= 6*x - 6*2
= 6(x - 2)

b) 7y + 21
= 7*y + 7*3
= 7(y + 3)

c) z² - 5z
= z*z - 5*z
= z(z - 5)

d) 9a - 18
= 9*a - 9*2
= 9(a - 2)

e) - 3b + 6
= - b*3 + 2*3
= 3(- b + 2)


f) 2c² - 3c
= 2c*c - 3*c
= c(2c - 3)

Bonne journée! =)