asrlimovic asrlimovic

12-11-2021
Mathematics

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Rewrite the equation by completing the square.
x? - 8x + 7 = 0
(x + __)^2 = 0

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jimrgrant1 jimrgrant1

12-11-2021

Answer:

(x - 4)² - 9 = 0

Step-by-step explanation:

x² - 8x + 7 = 0

To complete the square

add/subtract ( half the coefficient of the x- term)² to x² - 8x

x² + 2(- 4)x + 16 - 16 + 7 = 0

(x - 4)² - 9 = 0

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