SOLUTION: P(x) = x4 &#8722; 6x3 + 38x2 &#8722; 80x + 200; 2 + 4i

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Question 1099167: P(x) = x4 − 6x3 + 38x2 − 80x + 200; 2 + 4i
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39617) (Show Source):
You can put this solution on YOUR website!
You want the other three roots of P?

If 2+4i is one root then 2-4i is also a root ....

The quadratic factor for these two roots is

Divide P(x) by to find the other two roots.

Answer by ikleyn(52778) (Show Source):
You can put this solution on YOUR website!
.
The rule of this forum is:

EACH POST must go with a question.

The posts without questions are the subject of ignoring.

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This is a FORMAL rule.

There is also an informal one. // at least, of the same significance . . .

You posted something and you expect tutors will work for you.
It is your best opportunity to show your respect to tutors and to say "PLEASE . . . ".

Instead, you demonstrate your full disrespect and even do not put your question.

SOLUTION: P(x) = x4 &#8722; 6x3 + 38x2 &#8722; 80x + 200; 2 + 4i

SOLUTION: P(x) = x4 − 6x3 + 38x2 − 80x + 200; 2 + 4i