Répondre :
Bonjour,
A = 5(4x + 1) + 4(2x + 1) + 3(2x − 1)
A= 20x+5+8x+4+6x-3
A= 34x+6
Bonjour;
A = 5x(4x + 1) + 4(2x + 1) + 3(2x − 1)
= 20x² +5x +8x+4 +6x -3
= 20x² +19x +1
Bonjour,
A = 5(4x + 1) + 4(2x + 1) + 3(2x − 1)
A= 20x+5+8x+4+6x-3
A= 34x+6
Bonjour;
A = 5x(4x + 1) + 4(2x + 1) + 3(2x − 1)
= 20x² +5x +8x+4 +6x -3
= 20x² +19x +1