January 2021 0 80 Report
CHOISISSEZ LA BONNE RÉPONSE : Une forme factorisée de E= -5x*2+30x-15 est ...

A. 5(-x*2+6x-3)
B. -5(x*2-6x+3)
C. -5x(x+30-3)
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A= 2x*2-5-x(1+2x) A peut s'écrire aussi ...

A. -(5+x)
B. 4x*2-5-x
C. 2x*2-5-x-2x*2
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