Level:
Project ID:
9000031003
Source Problem:
Accepted:
1
Clonable:
1
Easy:
0
Assuming \(x\in \mathbb{R}\),
solve the following algebraic equation.
\[
x^{4} + 4x^{2} - 5 = 0
\]
\( \{ - 1;1\}\)
\( \{1\}\)
\( \{ -\sqrt{5};-1;1;\sqrt{5}\}\)
\( \emptyset \)