Question

X^4 - x^2 - 2x -1 . solve

Answer 1

Answer:

X⁴–X²–2X –1=0

(X²+X+1)(X²–X–1)=0

$x = - \frac{1 - i\sqrt{3} }{2} \\ x = - \frac{ 1 + i \sqrt{3} }{2}$

$x = \frac{1 + \sqrt{5} }{2} \\ x = \frac{1 - \sqrt{5} }{2}$

I hope I helped you^_^