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Meilleure réponse !
2014-04-12T09:41:15+02:00
Bonjour

A=x²-8x+16
A = (x - 4)²

B=36x²+96x+64
B = (6x + 8)²

C=(5x-3)²-144
  = (5x - 3)² - 12²
  = [(5x - 3) - 12][(5x - 3) + 12]
  = (5x - 3 - 12)(5x - 3 + 12)
  = (5x - 15)(5x + 9)
  • Utilisateur Brainly
2014-04-12T09:47:27+02:00
A=x²-8x+16
  =(x-4)²

B=36x²+96x+64
  =(6x+8)²
  =4(3x+4)²

C=(5x-3)²-144

  =(5x-3-12)(5x-3+12)
  =(5x-15)(5x+9)
  =5(x-3)(5x+9)