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Loona0409
@Loona0409
April 2022
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Dans un développement en math, combien fait :
(5x+3)² svp?
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magicaart
Saluut,25x² + 30x + 9 ou aussi (5x)² +30x + 9, c'est égal.d'après la formule de l'identité remarquable (a + b)²qui donne a² + 2ab +b²
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