Réponses

2013-01-12T23:29:45+01:00

A=5(7x-2) + 3(5- 4x) - 8x

distributivité

A = 15x+5

A = 5(3x+1)

2013-01-12T23:31:27+01:00

Bonsoir

A = 5(7x-2)+3(5-4x)-8x

A = 35x-1+15-12x-8x

A = 15x+5

A = 5(3x+1)