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ohraya
@ohraya
June 2021
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Quelle est la forme factorisée de 4(x+1)²-9 ?
Quelle est la forme canonique de -2x²-8x+1?
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slyz007
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4(x+1)²-9=(2(x+1))²-3²=(2x+2+3)(2x+2-3)=(2x+5)(2x-1)
-2x²+8x+1=-2(x²-4x-1/2)=-2(x²-4x+4-4-1/4)=-2((x-2)²-17/4)=-2(x-2)²+17/2
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Bonjour, pouvez-vous me dire quel est le sens de l'expression "gouvernement du peuple, par le peuple, pour le peuple"? merci d'avance!
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4(x+1)²-9=(2(x+1))²-3²=(2x+2+3)(2x+2-3)=(2x+5)(2x-1)-2x²+8x+1=-2(x²-4x-1/2)=-2(x²-4x+4-4-1/4)=-2((x-2)²-17/4)=-2(x-2)²+17/2