x-2分之1[x-2分之1(x-2分之1) ]等于2 怎么解

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x-2分之1[x-2分之1(x-2分之1)]等于2怎么解x-2分之1[x-2分之1(x-2分之1)]等于2怎么解x-2分之1[x-2分之1(x-2分之1)]等于2怎么解2=x-1/2(x-(1/2x-

x-2分之1[x-2分之1(x-2分之1) ]等于2 怎么解
x-2分之1[x-2分之1(x-2分之1) ]等于2 怎么解

x-2分之1[x-2分之1(x-2分之1) ]等于2 怎么解
2=x-1/2(x-(1/2x-1/4))
2 =x-1/2(x-1/2x+1/4)
2 =x-1/2(1/2x+1/4)
2 =x-(1/4x+1/8)
2 =3/4x-1/8
17/8=3/4x
x=17/6