3ème Mathématiques : D.M.
pou
Exercice 1:
On considère l'expression : E = (3x – 5)2 - 2x (3x – 5)
1. Développer et réduire E.
2. Montrer que E = (3x – 5)(x- 5).
3. Résoudre l'équation E = 0.



AIDEZ MOI ​
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