2 x 3x + 5 x 2x = 3x x 2x + 4 x 2x x x= 5x4x + 2x3x = 3xx x+ 4xx2x= 4x2 + 4 X x-2 x x = 7 X 4x + 4 – 3 x 2x + 5=.... Exercice de 5ème aidez moi svp. La question

Réponse :

Bonjour,

  2 * 3x + 5 * 2x

= 6x + 10x

= 16x

  3x * 2x + 4 * 2x * x

= 6x² + 8x * x

= 6x² + 8x²

= 14x²

   5 * 4x + 2 * 3x

= 20x + 6x

= 26x

   3x * x + 4x * 2x

= 3x² + 8x²

= 11x²

   4 * 2 + 4 * x - 2 * x

= 8 + 4x - 2x

= 8 + 2x

   7 * 4x + 4 – 3 * 2x + 5

= 28x + 4 - 6x + 5

= 28x - 6x + 4 +5

= 22x + 9

Bon courage ^-^