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r-ruslan [8.4K]
3 years ago
7

- The expression below shows a number in

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
3 0
B is the answer so if you want to know you can tell me if it is wrong
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Solve for x by completing the square: x2 - 12x + 11 = 0
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Answer:

B

Step-by-step explanation:

x² - 12x + 11 = 0 ( subtract 11 from both sides )

x² - 12x = - 11

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 6)x + 36 = - 11 + 36

(x - 6)² = 25 ( take square root of both sides )

x - 6 = ± \sqrt{25} = ± 5 ( add 6 to both sides )

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Then

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