\(\dfrac{\sqrt{x}-2}{\sqrt{x}-3}\)-\(\dfrac{3}{4}\)=\(\dfrac{\left(\sqrt{x}-2\right)\cdot4-3\cdot\left(\sqrt{x}-3\right)}{4\cdot\left(\sqrt{x}-3\right)}\)=\(\dfrac{4\sqrt{x}-8-3\sqrt{x}+9}{4\sqrt{x}-12}\)=\(\dfrac{\sqrt{x}+1}{4\sqrt{x}-12}\)
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