Mathématiques

Question

comment. factoriser sa ?
comment. factoriser sa ?

2 Réponse

  • (20x - 8) + (100x² - 16)
    = 100x² + 20x - 24
    = 4(25x² + 5x - 6)
    = 4(5x * 5x + 3 * 5x - 2 *5x - 3 * 2)
    = 4(5x + 3)(5x - 2)
  • (20x-8)+ (100x²-16) = 2(10x-4) +  (10x+4)(10x-4) = (10x-4) (2 +  (10x+4))= (10x-4) (10x+6)