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\frac{\left(\sqrt{x}-\sqrt{3}\right)\left(x-3\right)}{\left(x-3\right)\left(\sqrt{x}-\sqrt{3}\right)}
Multiply \frac{\sqrt{x}-\sqrt{3}}{x-3} times \frac{x-3}{\sqrt{x}-\sqrt{3}} by multiplying numerator times numerator and denominator times denominator.
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Cancel out \left(\sqrt{x}-\sqrt{3}\right)\left(x-3\right) in both numerator and denominator.
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