December 2020 0 32 Report
Bonjour ! 1. Réduire les expressions suivantes :
A=5x-9x=
B=-6y×8y=
C=5×7u^2-8u×4u=
D=3+(7x-9)-(2-5x)=

2. Développer les expressions suivantes :
M=5×(a+7)=
N=-2b(3-5b)=
O=(6x+4)(3x+2)=

Merci de votre aide !!
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