SOLUTION: Consider g(x)=x^3+4x; what is the maximum number of zeroes it can have? a. 2 b. 1 c. 3 d. 4

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Question 154488: Consider g(x)=x^3+4x; what is the maximum number of zeroes it can have?
a. 2
b. 1
c. 3
d. 4
Answer by Alan3354(69443) About Me  (Show Source):
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Consider g(x)=x^3+4x; what is the maximum number of zeroes it can have?
a. 2
b. 1
c. 3
d. 4
------------
c. 3
It's a 3rd order, it will have exactly 3.
One of them is zero. The others are 2i and -2i, where
i+=+sqrt%28-1%29