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(X-4)^2=169,,,,please answer this,,this is my homework ,,,thank you;)

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Rodriguezmina94viz
[tex](x-4)^{2} = 169[/tex]
[tex] x^{2} -8x+16=169[/tex]
[tex] x^{2} -8x+16-169=0[/tex]
[tex] x^{2} -8x-153=0[/tex]
[tex](x+9)(x-17)[/tex]
[tex]x+9=0[/tex]
[tex]x=-9[/tex]
[tex]x-17=0[/tex]
[tex]x=17[/tex]

[tex]x=-9;x=17[/tex]

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