A=x(x+2)=x*_+x*_=_+_ B=3x(x+4)=3x*_+3x*_=_+_. C=2x(3-x)=2x*_-_*x=_-_

*=multiplication

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Grade: Education Subject: mathematiques
A=x(x+2)=x*_+x*_=_+_ B=3x(x+4)=3x*_+3x*_=_+_. C=2x(3-x)=2x*_-_*x=_-_

*=multiplication
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Bonjour;

A=x(x+2)=x*x_+x*2_= x² +2x

B=3x(x+4)=3x*x_+3x*4_=3x² +12x.

C=2x(3-x)=2x*3 _-2x_*x= 6x -2x²