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Sagot :

OVEROLL
Développer et réduire:
A) 5 x 3a + 5 x 1 = 15a + 5
B) 6x - 12
C) 6b - 3
S) 3x + 6a + 12

Factoriser:
A) 3 (x + y)
B) 5 (x + 3)
C) 2 (6 - 5a)
D) 7 (3x + 2)
E) x (2 + x)

MICALECHOCOLAT

A= 5 (3a+1) = 5×3a +5×1= 15a +1

B= 6x -12

C= 3-6b

D=3x + 6a + 12

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