Factoriser D: D=(5x-1)² -49
Mathématiques
Anonyme
Question
Factoriser D:
D=(5x-1)² -49
D=(5x-1)² -49
1 Réponse
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1. Réponse anylor
(5x -1) - 7² = ( 5x-1 -7 )(5x -1 +7 ) =( 5x-8)(5x +6)