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Exponents & Radicalshard
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If f(x)=x+2x−1+x−2x−1f(x) = \sqrt{x + 2\sqrt{x-1}} + \sqrt{x - 2\sqrt{x-1}}f(x)=x+2x−1​​+x−2x−1​​, simplify f(x)f(x)f(x) for x≥2x \ge 2x≥2.