Comment factoriser (2x+1)×(2x+1)-(x-2)×(x-2)???? Svp c urgent
Mathématiques
tiphanie11
Question
Comment factoriser (2x+1)×(2x+1)-(x-2)×(x-2)????
Svp c urgent
Svp c urgent
1 Réponse
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1. Réponse lolo93270
=4x² + 2 * 2x * 1 + 1` - (x²` - 2 * x * 2 + 2`)
=4x² + 4x +1 - (x² - 4x + 4)
=5x²+5