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Tiffounet29
@Tiffounet29
April 2019
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Bonjour,
S'il vous plait est ce que vous pourriez m'aider a faire l'exercice 106. J'arrive vraiment pas. Merci
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blondinetteoceane88
Verified answer
1) D=(2x-3)(3x-1)+(2x-3)²
=6x²-2x-9x+3+4x²-12x+9
=10x²-23x+12
2) D=(2x-3)(3x-1)+(2x-3)(2x-3)
=(2x-3)(3x-1+2x-3)
=(2x-3)(5x-4)
4) (2x-3)(5x-4)=0
2x-3=0 ou 5x-4=0
2x=3 ou 5x=4
x=3/2 ou x=4/5
3)
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blondinetteoceane88
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bethany07
...........................................
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Est ce que vous pouvez m'aider s'il vous plait, merci.
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Pouvez vous m'aider pour l'exercice 1 svp merci
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Verified answer
1) D=(2x-3)(3x-1)+(2x-3)²=6x²-2x-9x+3+4x²-12x+9
=10x²-23x+12
2) D=(2x-3)(3x-1)+(2x-3)(2x-3)
=(2x-3)(3x-1+2x-3)
=(2x-3)(5x-4)
4) (2x-3)(5x-4)=0
2x-3=0 ou 5x-4=0
2x=3 ou 5x=4
x=3/2 ou x=4/5
3)