Bonjour j’ai 2 calcule à justifier aidez-moi svp c’est pour demain
1)- 5x(2x - 7)+ 4(3-8x)
2)-4(x + 3)+5(6 + x)
1)- 5x(2x - 7)+ 4(3-8x)
2)-4(x + 3)+5(6 + x)
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[tex]-5x(2x - 7)+ 4(3-8x) = -10x^2+35x+12-32x =-10x^2+3x+12[/tex]
[tex]-4(x + 3)+5(6 + x) = -4x-3x+30+5x=-2x+30[/tex]