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08-05-2014
Mathematics

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How do I solve x^2 - 8x + 16 = 25 using perfect factoring patterns?

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kate200468 kate200468

08-05-2014

[tex]x^2 - 8x + 16 = 25\\ \\(x-4)^2=5^2\\ \\x-4=5\ \ \ \vee\ \ \ x-4=-5\\ \\x=5+4\ \ \ \ \ \ \ \ \ x=-5+4\\ \\x=9\ \ \ \ \ \ \ \ \ \ \ \ \ \ x=-1[/tex]

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