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Abou080457
@Abou080457
May 2019
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BONSOIR, AIDEZ MOI SVP URGENT!
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Commentaires (1)
Bonsoir (re)
aire initiale du carré = x²
nouvelle longueur = x + 3.5
nouvelle largeur = x + 1.4
nouvelle aire = ( x + 3.5) ( x + 1.4)
= x² + 1.4 x + 3.5 x + 4.9
= x² + 4.9 x + 4.9
augmentation = x² + 4.9 x + 4.9 - x² = 4.9 x + 4.9 =
4.9 ( x + 1 )
tu remplaces maintenant x par 5 , puis par 10
1 votes
Thanks 1
abou080457
d'accord merci bcp!
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saluut pouvez vous m'aidez svp pour mon exo de maths urgennnt svpp!
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bonjour , pouvez vous m'aidez svp pour mon dm de maths c vraiment urgeennt! mercii au personne s qui m'aides!
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Bonjour, pouvez vous m'aidez svp!
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aire initiale du carré = x²
nouvelle longueur = x + 3.5
nouvelle largeur = x + 1.4
nouvelle aire = ( x + 3.5) ( x + 1.4)
= x² + 1.4 x + 3.5 x + 4.9
= x² + 4.9 x + 4.9
augmentation = x² + 4.9 x + 4.9 - x² = 4.9 x + 4.9 = 4.9 ( x + 1 )
tu remplaces maintenant x par 5 , puis par 10