72.9k views
24 votes
What are the solutions of the equation x4 - 5x2 - 14 = 0? Use factoring
to solve.

What are the solutions of the equation x4 - 5x2 - 14 = 0? Use factoring to solve.-example-1
User Esgaldir
by
8.4k points

1 Answer

2 votes

Answer:

x = ±√7, ±i√2

Explanation:


x^4-5x^2-14=0\\(x^2-7)(x^2+2)=0\\


x^2 - 7 = 0 or
x^2 + 2 = 0\\

x^2 - 7 = 0

x^2 = 7

x = ±√7

or x^2 + 2 = 0

x^2 = -2

x = ±i√2

User Vinay Pandey
by
8.3k points

Related questions

2 answers
5 votes
62.0k views
2 answers
4 votes
20.3k views
2 answers
5 votes
83.3k views