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alex41 [277]
3 years ago
8

Can you please answer for me please need questions answer

Mathematics
2 answers:
Mkey [24]3 years ago
5 0

Answer:

decimal form: 7.46410161 or the exact form: x = 4 + 2 √ 3

Step-by-step explanation:

Nat2105 [25]3 years ago
5 0

Answer:

<em>4 + 2√3</em><em> </em>

Step-by-step explanation:

x - 2 = √4x

<u><em>Domain: √4x ≥ 0 ⇒ x - 2 ≥ 0 ⇒ x ≥ 2</em></u>

(x - 2)² = (√4x)²

x² - 4x + 4 = 4x

x² - 8x + 4 = 0

D = (- 8)² - 4(1)(4) = 48 = (4√3)²

x_{1} = \frac{8+4\sqrt{3} }{2} =<em> 4 + 2√3</em> ≈ 7.4641

x_{2} = \frac{8-4\sqrt{3} }{2} = 4 - 2√3 ≈ 0.5359 < 2 ⇒ x_{2} is extraneous root

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Step-by-step explanation:

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