Skip to content
free
K
1
2
practice
Home
Math
English
Science
Social Studies
Contact
Language
English
Español
Sign In
/
Math
/
Pre-Calculus
/
Polynomial Operations and Structure
Worksheet
Grade Level
Pre-Calculus
Pre-CAL.31 Polynomial Operations and Structure
0%
Skill Level
🔴 Hard
00:00
Progress to Next Level
25% to Medium
Easy
Medium
Hard
Mastery
100%
Find all real zeros of x⁴ - 5x² + 4 = 0.
A
x = -2, -1, 1, 2
B
x = -4, -1, 1, 4
C
x = -2, 2
D
x = -1, 1
Submit Answer