Вычислите \({{(\frac{x^5}{4y^6})}^4:{(-\frac{x^6}{8y^5})}^3}\) .

• \(-\frac{2x^2}{y^{9}}\)
• \(\frac{2x^2}{y^{9}}\)
• \(\frac{2}{xy}\)
• \(-\frac{2}{xy}\)