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x^2-3x+2=m^2
x^2-3x=m^2-2
x^2-3x+9/4=m^2-2+9/4=(4m^2+1)/4
(x-3/2)^2=(4m^2+1)/4
x-3/2 = ±√(4m^2+1)/2
x1 = {3-√(4m^2+1)} /2
x2 = {3+√(4m^2+1)} /2
求采纳,我一天没采纳了555
x^2-3x=m^2-2
x^2-3x+9/4=m^2-2+9/4=(4m^2+1)/4
(x-3/2)^2=(4m^2+1)/4
x-3/2 = ±√(4m^2+1)/2
x1 = {3-√(4m^2+1)} /2
x2 = {3+√(4m^2+1)} /2
求采纳,我一天没采纳了555
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求采纳,就算错了也是,行吗555
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