9000019803 | math4u.vsb.cz

SubArea:

Higher degree equations and inequalities

Level:

Project ID:

9000019803

Source Problem:

Accepted:

1

Clonable:

1

Find the solution set of the following equation.

x^{4} - 5 x^{2} + 4 = 0

{- 2; - 1; 1; 2}

{- 1; 1}

{- 2; 2}

{1; 2}