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December 2019
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Calcule: (-2X^2+3X)-(2X^2+3X-2)=
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citovictor
-2x²+3x-(2x²+3x-2)
-2x²+3x-2x²-3x+2
respeite a regra dos sinais na hora de tirar o parênteses, muita atenção nessa parte
-2x²-2x²+3x-3x+2
-4x²+0+2
2-4x²
ou
2(1-2x²)
1 votes
Thanks 1
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Lista de comentários
-2x²+3x-2x²-3x+2
respeite a regra dos sinais na hora de tirar o parênteses, muita atenção nessa parte
-2x²-2x²+3x-3x+2
-4x²+0+2
2-4x²
ou
2(1-2x²)