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AveGali [126]
1 year ago
7

(09.02)

Mathematics
1 answer:
Ivenika [448]1 year ago
4 0

Answer:

4th option

Step-by-step explanation:

x² - 2x - 3 = 0 ( add 3 to both sides )

x² - 2x = 3

using the method of completing the square

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

x² + 2(- 1)x + 1 = 3 + 1

(x - 1)² = 4

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