#### Answer

4 roots

#### Work Step by Step

The Fundamental Theorem of Algebra states that every polynomial equation of degree $n \ge 1$ has exactly $n$ roots.
The given equation has $n=4$ therefore it has $4$ roots.

Published by
Prentice Hall

ISBN 10:
0133186024

ISBN 13:
978-0-13318-602-4

4 roots

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