Répondre :
Bonsoir
a = 6(x+2) + (3-x) + 2x+8
a = 6x+12 +3-x+2x+8
a = 7x +23
b = (x+2)(2x+3)+3x²
b = 2x² +3x +4x +6 +3x²
b = 5x² +7x +6
bonjour pouvez vous maider a developper reduire et ordonner aet b a=6(x+2) + (3-x) + 2x+8 b=(x+2) (2x+3) +3x²
Bonsoir
a = 6(x+2) + (3-x) + 2x+8
a = 6x+12 +3-x+2x+8
a = 7x +23
b = (x+2)(2x+3)+3x²
b = 2x² +3x +4x +6 +3x²
b = 5x² +7x +6