Approximately, \(x \approx 6.27\) or \(x \approx -1.27\).
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- So, \(x^2 - 5x - 8 = 0\).
- Use quadratic formula: \(x = \frac{5 \pm \sqrt{25 + 32}}{2}\).
- \(x = \frac{5 \pm \sqrt{57}}{2}\).
- Only \(x \approx 6.27\) is valid since \(x^2 - 5x > 0\).
- #### 6.27Question: Let $ x, y, z $ be positive real numbers such that $ x + y + z = 1 $. Find the minimum value of the expression
- Solution: To minimize the expression
