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spin [16.1K]
2 years ago
4

Solve x2 – 8x = 3 by completing the square. Which is the solution set of the equation?

Mathematics
2 answers:
alexandr402 [8]2 years ago
6 0

Answer:

x = 4 ± \sqrt{19}

Step-by-step explanation:

Given

x² - 8x = 3

To complete the square

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

x² + 2(- 4)x + 16 = 3 + 16

(x - 4)² = 19 ( take the square root of both sides )

x - 4 = ± \sqrt{19} ( add 4 to both sides )

x = 4 ± \sqrt{19}, that is

x = 4 - \sqrt{19}, 4 + \sqrt{19}

xxMikexx [17]2 years ago
6 0

Answer:

the answer is the first option

Step-by-step explanation:

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