x方+½x=三分之二+x-½x方(解方程)
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x方+½x=三分之二+x-½x方(解方程)
x方+½x=三分之二+x-½x方(解方程)
x方+½x=三分之二+x-½x方(解方程)
x方+½x=三分之二+x-½x方
x^2+x/2=2/3+x-x^2/2
2x^2+x=4/3+2x-x^2
3x^2-x=4/3
x^2-x/3=4/9
(x-1/6)^2=17/36
x-1/6=±√17/6
x1=1/6+√17/6 x2=1/6-√17/6 .