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svetlana [45]
1 year ago
11

SOMEONE HELP !!! Please

Mathematics
1 answer:
Lelu [443]1 year ago
3 0

Answer:

x = ± \sqrt{8} - 2

Step-by-step explanation:

x² + 4x = 4

to complete the square

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

x² + 2(2)x + 4 = 4 + 4

(x + 2)² = 8 ( take square root of both sides )

x + 2 = ± \sqrt{8} ( subtract 2 from both sides )

x = ± \sqrt{8} - 2

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