SOLUTION: Use the given zero, 5i, to find all the zeros of the function: f(x)=2x^3+3x^2+50x+75
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Question 626148: Use the given zero, 5i, to find all the zeros of the function: f(x)=2x^3+3x^2+50x+75
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The complex zeros always come in pairs that
look like and , so the
pairs of factors are and
If I multiply these, I get
------------
Now I divide
by and I get as the
3rd factor . Set it equal to zero.
Here's the plot:
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