a(x)= 5(x-1)-2(x-2)-3x+1
Mathématiques
Lulú97419
Question
a(x)= 5(x-1)-2(x-2)-3x+1
2 Réponse
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1. Réponse linouchette
a(x)=5 (x-1)-2 (x-2)-3x+1
a(x)=5x-5-2x+4-3x+1
a(x)=5x-2x-3x+4+1-5
a(x)=5x-5x+5-5
a(x)=0 -
2. Réponse telephone16
5(x-1) -2(x-2) -3x +1
5x -5 -2x +4 -3x +1
5x -2x -3x -5 +4 +1 = 0