factoriser (9x_7)au carre -16
Mathématiques
jianadelaide
Question
factoriser (9x_7)au carre -16
1 Réponse
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1. Réponse Elo15
Bonjour
( 9x - 7) ^2 - 16
= ( 9x - 7 - 4) ( 9x - 7 + 4)
= ( 9x - 11) ( 9x - 3)
= 3 ( 9x - 11) ( 3x - 1)