From the eqn \(x^2 = 49\)

therefore, \(x = 7, -7\)

when \(x\) is replaced by either \(7\) or \(-7\) the two quantities are equal

When \(x = 7\) both quantities are \(0\)

when \(x = -7\) both quantities are \(98\)

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This is my response to the question and may be incorrect. Feel free to rectify any mistakes