Bonjour svp aider moi Exercice 1
On donne A = (x − 3)2 + (x − 3)(1 − 2x).
1) Développer et réduire A.
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2) Prouver que l’expression factorisée de A est : (x − 3)(-x − 2).
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3) Résoudre l’équation A = 0.
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