Mathématiques

Question

1) (x-5)²=(x+2)(x+3)

2 Réponse

  • (x - 5)² = (x + 2) (x + 3)
    x² - 10x + 25 = x² + 3x + 2x + 6
    x² - 10x + 25 ≠ x² + 5x + 6
  • (x - 5)² = (x + 2) (x + 3)
    x²+2.5.x-5²=x²+3x+2x+6
    x²+10x-25=5x+x²+6
    x²+10x-25-5x-x-6=0
    5x-19=0

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