Mathématiques

Question

Factoriser l'expression suivante :

(8y-6)²-4

1 Réponse

  • (8y-6)²-4
    = (8y-6)² - (2)²
    = (8y-6+2) (8y-6-2)
    = (8y-4) (8y-8)
    = 4 (2y-1) x 8 (y-1)
    = 32 (2y-1) (y-1)

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