$$$f{\left(x \right)} = x^{4} + 6 x^{3} - 3 x^{2} + 17 x - 15$$$ 的根
您的輸入
求解 $$$x^{4} + 6 x^{3} - 3 x^{2} + 17 x - 15 = 0$$$。
答案
根：$$$- \frac{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}}{2} - \frac{3}{2} + \frac{\sqrt{- 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 22 + \frac{106}{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}}}}{2}\approx 0.793705310335777$$$A，重數：$$$1$$$A。
根：$$$- \frac{\sqrt{- 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 22 + \frac{106}{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}}}}{2} - \frac{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}}{2} - \frac{3}{2}\approx -6.847415492273561$$$A，重數：$$$1$$$A。
根：$$$- \frac{3}{2} + \frac{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}}{2} + \frac{\sqrt{- \frac{106}{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}} - 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 22}}{2}\approx 0.026855090968892 + 1.661100453811431 i$$$A，重數：$$$1$$$A。
根：$$$- \frac{3}{2} + \frac{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}}{2} - \frac{\sqrt{- \frac{106}{\sqrt{- \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + 11}} - 2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}} + \frac{53}{2 \sqrt[3]{- \frac{271}{16} + \frac{\sqrt{668949}}{16}}} + 22}}{2}\approx 0.026855090968892 - 1.661100453811431 i$$$A，重數：$$$1$$$A。