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emtro
@emtro
January 2021
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Bonsoir, je dois factoriser (x+2) au carré -(2x-3) au carré, je suis en seconde et complètement perdue en maths ...
Merci beaucoup d'avance ...
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Riemann
Bonsoir,
(x+2) ² -(2x-3) ² => (x+2-2x+3)(x+2+2x-3)
=> (-x+5)(3x-1)
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inequation
Verified answer
Utilise l'identité remarque A^2-B^2=(A-B)(A+B)
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emtro
Merci beaucoup, bonne soirée
inequation
de rien , bonne soirée
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(x+2) ² -(2x-3) ² => (x+2-2x+3)(x+2+2x-3)
=> (-x+5)(3x-1)
Verified answer
Utilise l'identité remarque A^2-B^2=(A-B)(A+B)