已知60^a=5,则12^1/1-1=?化简(x-1)/(x^2/3 +x^1/3+1)+(x+1)/(x^1/3 +1)-(x-x^1/3)/(x^1/3-1)追加悬赏

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已知60^a=5,则12^1/1-1=?化简(x-1)/(x^2/3 +x^1/3+1)+(x+1)/(x^1/3 +1)-(x-x^1/3)/(x^1/3-1)追加悬赏
已知60^a=5,则12^1/1-1=?
化简(x-1)/(x^2/3 +x^1/3+1)+(x+1)/(x^1/3 +1)-(x-x^1/3)/(x^1/3-1)追加悬赏

已知60^a=5,则12^1/1-1=?化简(x-1)/(x^2/3 +x^1/3+1)+(x+1)/(x^1/3 +1)-(x-x^1/3)/(x^1/3-1)追加悬赏
标题看不懂~
化简的题目如图:

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