Question

Can you please answer for me please need questions answer

Answer 1

Answer:

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

Step-by-step explanation:

Answer 2

Answer:

4 + 2√3

Step-by-step explanation:

x - 2 = √4x

Domain: √4x ≥ 0 ⇒ x - 2 ≥ 0 ⇒ x ≥ 2

(x - 2)² = (√4x)²

x² - 4x + 4 = 4x

x² - 8x + 4 = 0

D = (- 8)² - 4(1)(4) = 48 = (4√3)²

$x_{1}$ = $\frac{8+4\sqrt{3} }{2}$ = 4 + 2√3 ≈ 7.4641

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