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KodaSim
@KodaSim
January 2021
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Quelqu'un peut m'aider à faire ça ? SVP j'comprends vraiment rien...
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Christine17
A(x)=(2+x)(3-2x)
A(x)=6-4x+3x-2x²=-2x²-x+6
B(x)=(3x-4)²=9x²+16-24x
A(x)=3x²-7x=x(3x-7)
C(x)=x²-(2x+1)²=x²-(4x²+1+4x)=x²-4x²-1-4x=-3x²-4x-1=-(3x²+4x+1)
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A(x)=6-4x+3x-2x²=-2x²-x+6
B(x)=(3x-4)²=9x²+16-24x
A(x)=3x²-7x=x(3x-7)
C(x)=x²-(2x+1)²=x²-(4x²+1+4x)=x²-4x²-1-4x=-3x²-4x-1=-(3x²+4x+1)