Вопрос:

Solve the equation: \(\sqrt{9/6} = 8 - 5 \sqrt{x-1}\)

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Ответ:

Solution:

We are asked to solve the equation \(\sqrt{9/6} = 8 - 5 \sqrt{x-1}\).

  1. Simplify the left side: \(\sqrt{9/6} = \sqrt{3/2} = \frac{\sqrt{3}}{\sqrt{2}} = \frac{\sqrt{6}}{2}\).
  2. Isolate the square root term: \(\frac{\sqrt{6}}{2} = 8 - 5 \sqrt{x-1}\)
    \(5 \sqrt{x-1} = 8 - \frac{\sqrt{6}}{2}\)
    \(5 \sqrt{x-1} = \frac{16 - \sqrt{6}}{2}\)
    \(\sqrt{x-1} = \frac{16 - \sqrt{6}}{10}\).
  3. Square both sides: \(x-1 = \left(\frac{16 - \sqrt{6}}{10}\right)^2\)
    \(x-1 = \frac{16^2 - 2 * 16 * \sqrt{6} + (\sqrt{6})^2}{100}\)
    \(x-1 = \frac{256 - 32\sqrt{6} + 6}{100}\)
    \(x-1 = \frac{262 - 32\sqrt{6}}{100}\)
    \(x-1 = \frac{131 - 16\sqrt{6}}{50}\).
  4. Solve for x: \(x = 1 + \frac{131 - 16\sqrt{6}}{50}\)
    \(x = \frac{50 + 131 - 16\sqrt{6}}{50}\)
    \(x = \frac{181 - 16\sqrt{6}}{50}\).

Answer: \(x = \frac{181 - 16\sqrt{6}}{50}\)

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