Solve (i) \( \sqrt{4 x^{2}-7 x-15}-\sqrt{x^{2}-3 x}=\sqrt{x^{2}-9} \).
Solve
(i) \( \sqrt{4 x^{2}-7 x-15}-\sqrt{x^{2}-3 x}=\sqrt{x^{2}-9} \).
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