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vivien69
@vivien69
January 2021
1
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factoriser (7x-1)²-81 svp c'est urgent merci d'avance
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manamanou123
bonjour
(7x-1)
²
-81
=(7x-1)
²
-9
²
=
(7x-1-9)(7x-1+9)
=(7x-10)(7x+8)
2 votes
Thanks 1
vivien69
mrc
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vivien69
January 2021 | 0 Respostas
http://fr.static.z-dn.net/files/d75/7b47eeeb2b7cf59c3d855eeddf59f9de.png svp vous pouvez m'aider a cette exercice c'est urgent c'est a rendre lundi merci d'avance
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vivien69
January 2021 | 0 Respostas
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vivien69
January 2021 | 0 Respostas
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(7x-1)²-81
=(7x-1)²-9²
=(7x-1-9)(7x-1+9)
=(7x-10)(7x+8)