Réponse :
[tex]5x-2x(3-x)+2x^2-7\\=5x-6x+2x^2+2x^2-7\\=4x^2-x-7[/tex]
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Réponse :
[tex]5x-2x(3-x)+2x^2-7\\=5x-6x+2x^2+2x^2-7\\=4x^2-x-7[/tex]