@rose170769

rose170769

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Dada a função f(x)=2x²-3x+1, calcule:1) f(2)
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Dada a função f(x)=2x²-3x+1, calcule:2) f(-2)3) f(2)+f(-2)
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Encontre os valores de x. 1) x²-7=42   2) 2x²+8=40   3) 3x²-27=0
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