Urgente ! f(x)=x²-7x+6 calcule o valor de x de modo que:?
f(x)=x²-7x+6 calcule o valor de x de modo que: f(x)=x
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f(x)=x²-7x+6 calcule o valor de x de modo que: f(x)=x
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Verified answer
x² - 7x + 6 = x
x² - 8x + 6 = 0
d² = 64 - 24 = 40
d = 2√10
x1 = (8 + 2√10)/2 = 4 + √10
x2 = (8 - 2√10)/2 = 4 - √10
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