Medium
Suppose that real number xxx satisfies49−x2−25−x2=3\sqrt{49-x^{2}}-\sqrt{25-x^{2}}=3 √49−x2−√25−x2=3What is the value of 49−x2+25−x2\sqrt{49-x^{2}}+\sqrt{25-x^{2}}√49−x2+√25−x2 ?
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