Réponses

2014-04-25T01:02:31+02:00
A = 4(2x+2)+3(2x+6)
A = 8x + 8 + 6x + 18

A = 14x +26

B = -2(-2,5x+2) - (-9x - 30)
B = 5x - 4 + 9x + 30

B = 14x  + 26

A = B