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2013-04-09T18:05:21+02:00

EX 76 :

 

A = 3x + 15

A = 3(x + 5)

 

B = 4y - 8

B = 4(y - 2)

 

C = 5x + 10

C = 5(x + 2)

 

D = 7y - 21

D = 7(y - 3)

 

EXERCICE 77

 

A = 2x + 2

A = 2(x + 1)

 

B = 3y - 3

B = 3(y - 1)

 

C = 4x - 4

C = 4(x - 1)

 

D = 9y - 9

D = 9(y - 1)