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alicia38
@alicia38
June 2021
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développer, reduire et ordonner lexpression suivante:
(2x-5)(2x+5)
en gros j'utilise l'identité remarquable ?
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nonotata
Verified answer
Identitie remarquabe pour resoudre ton pb
(a-b)(a+b) = a² -b²
donc
(2x+5)(2x-5)
4x²-25
donc oui en gros tu utilises l identite remarquable
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alicia38
June 2021 | 0 Respostas
(1/x) - 1/ x-1 c'est des fractions et faut reduire le plus possible
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alicia38
June 2021 | 0 Respostas
Developper et reduire cette expression -5x(-3x-1)(x+2) merci d'avance !
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Verified answer
Identitie remarquabe pour resoudre ton pb(a-b)(a+b) = a² -b²
donc
(2x+5)(2x-5)
4x²-25
donc oui en gros tu utilises l identite remarquable