Réponses

2013-03-30T13:27:54+01:00

A=5(2x-3)+3x = 10x -15 + 3x = 13x -15

 

 

:b=5x+5 = 5(x +1)

 

 

 

 

2013-03-30T13:29:55+01:00

A= 5 * 2x + 5 * (-3) + 3x 

= 10x - 15 + 3x 

= 13x- 15