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dz73
@dz73
January 2021
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bonjour j'ai un exo de math a faire et je n'y arrive pas pourriez vous m'aidez svp ?
1) factoriser: (x+1)²-(x-1)²
2)calculer: 10001²-9999²
merci d'avance pour votre aide
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ProfdeMaths1
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1) factoriser:
(x+1)²-(x-1)²
=x²+2x+1-x²+2x-1
=4x
2)calculer:
10001²-9999²
=4*10000
=40000
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depanneur
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N hésite pas si tu as une question
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Verified answer
1) factoriser:(x+1)²-(x-1)²
=x²+2x+1-x²+2x-1
=4x
2)calculer:
10001²-9999²
=4*10000
=40000
Verified answer
N hésite pas si tu as une question