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Sagot :

Bonsoir,

Résoudre l'équation :

  • (5x+2)(6x-5)-(5x+2)(7x-4) = 0
  • (5x+2)(6x-5-(7x-4)) = 0
  • (5x+2)(6x-5-7x+4) = 0
  • (5x-2)(-x-5+4) = 0
  • (5x-2)(-x-1) = 0
  • 5x+2 = 0 ; -x-1 = 0
  • x = -2/5 ; x = -1
  • S = {-2/5 ; -1}

Bonne soirée.

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