若5x+1/x=5,则5^2+1/x^2=?
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若5x+1/x=5,则5^2+1/x^2=?若5x+1/x=5,则5^2+1/x^2=?若5x+1/x=5,则5^2+1/x^2=?题目没错吗5x+1/x=5,（5x）^2+(1/x)^2=15
若5x+1/x=5,则5^2+1/x^2=?
若5x+1/x=5,则5^2+1/x^2=?
若5x+1/x=5,则5^2+1/x^2=?
题目没错吗5x+1/x=5,（5x）^2+(1/x)^2=15
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