Question

x方+½x=三分之二+x-½x方（解方程）

Answer 1

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 .