December 2020 0 159 Report
Exercice 2 : ( 6 points) 1) a) Factoriser l'expression A = ( 2x - 4 ) ( 7x + 2) + ( 5x + 9) ( 7x + 2).
b) Résoudre l'équation A = 0.
2) a) Factoriser 9x2 - 12x + 4.
b) Factoriser l'expression B = 9x2 + 12x + 4 - ( 9x + 12 ) ( 3x - 2).
c) Résoudre l'équation B = 0.


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