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Question Number 166526 by mathlove last updated on 21/Feb/22

Answered by MJS_new last updated on 21/Feb/22

$$\Rightarrow$$$$x^4+\frac{7}{2}{x}^3+\frac{9}{2}{x}^2+\frac{7}{2}x-\frac{5}{2}=0$$$$(x^2+2x-1)(x^2+\frac{3}{2}x+\frac{5}{2})=0$$$$\Rightarrow$$$$x=-1\pm \sqrt{2}$$$$x=-\frac{3}{4}\pm \frac{\sqrt{31}}{4}\mathrm{i}$$

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