231k views
0 votes
Factor this please: x^4-9x^2+20

User Dobbo
by
8.8k points

2 Answers

2 votes
x = ± √5 = ± 2.2361 x = 2 x = -2
User Zhengyue
by
7.4k points
0 votes
Your answer is (x+2)(x-2)(x^2-5)
User Jolo
by
8.2k points