Factorization of a complex polynomial

hoopsmax25
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Homework Statement


p(x)=((x−1)^2 −2)^2 +3. From here find the full factorization of p(x) into the product of first order terms and identify all the
complex roots.


Homework Equations


I am having trouble doing this by hand. I know there are four complex roots but can't seem to figure out how to get them factored out.


The Attempt at a Solution

 
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hoopsmax25 said:

Homework Statement


p(x)=((x−1)^2 −2)^2 +3. From here find the full factorization of p(x) into the product of first order terms and identify all the
complex roots.

Homework Equations


I am having trouble doing this by hand. I know there are four complex roots but can't seem to figure out how to get them factored out.

The Attempt at a Solution

Solve \displaystyle ((x−1)^2 −2)^2 +3 = 0 in steps.

First solve for \displaystyle ((x−1)^2 −2)\,. There are two solutions.

Then isolate \displaystyle (x−1)^2 for each of the above solutions and take the square root of both sides in each case.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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