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slurpy
@slurpy
May 2022
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On peut m’aider svp je n’arrive pas à faire cet exo
Merci d’avance 20 point
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adsmdevoirs
Réponse :Explications étape par étape :[tex](x-1)(2x-1)-2(x-1)\\(x-1)((2x-1)-2)\\(x-1)(2x-1-2)\\(x-1)(2x-3)[/tex][tex](3x+2)+(3x+2)(x+4)\\(3x+2)(1+(x+4))\\(3x+2)(x+5)\\[/tex][tex](5x+2)(7x-1)+(5x+2)(2-4x)\\(5x+2)(7x-1+2-4x)\\(5x+2)(3x+1)[/tex][tex](4x-3)^{2} +7x(4x-3)\\(4x-3)(4x-3+7x))\\(4x-3)(11x-3)\\[/tex][tex](x+7)(3x-5)+7x+49\\(x+7)(3x-5)+7(x+7)\\(x+7)(3x-5+7)\\(x+7)(3x+2)[/tex][tex](x-1)(2x+3)-(x-1)(2-x)\\(x-1)(2x+3-(2-x))\\(x-1)(2x+3-2+x)\\(x-1)(3x+1)[/tex]2)Article coute 150€ augmente de 20%[tex]150+(150*\frac{20}{100} )\\150 +30=180[/tex]€On baisse cet article de 20%[tex]180-(180*\frac{20}{100} )\\180-36=144[/tex]€3)Canapé / 3 000€ baisse de 5%[tex]3 000-(3000*\frac{5}{100} )\\3000-150=2850[/tex]€
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slurpy
Je t’aimmmmmmmmme !!!!!!!!!!!!!
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