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04-02-2021
Mathematics

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[tex]x^{2}-8x+16=25[/tex]

Respuesta :

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04-02-2021

Answer:

x = 9 ; -1

Step-by-step explanation:

[tex]x {}^{2} - 8x + 16 = 25 \\ x {}^{2} - 8x + 16 - 25 = 0 \\ {x}^{2} - 8x - 9 = 0 \\ (x + 1)(x - 9) = 0 \\ x = - 1 \\ x = 9[/tex]

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