[tex](x - 7)^2 = 81[/tex]
[tex]x - 7 = \pm \sqrt{81} [/tex]
[tex]x - 7 = \pm 9[/tex]
[tex]x = 9 + 7 \ \ or \ x = -9 + 7[/tex]
[tex]x = 16 \ \ or \ x = -2[/tex]
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Answer: x = 16 or x = -2 ( Answer C)
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