je veux la solution de cet exemple :
(x+2)²-2(x+2)(2x-1)+(2x-1)²

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Grade: Education Subject: mathematiques
je veux la solution de cet exemple :
(x+2)²-2(x+2)(2x-1)+(2x-1)²
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(x+2)²-2(x+2)(2x-1)+(2x-1)²=[(x+2)-(2x-1)]²=(x+2-2x+1)=(-x+3)²