
Kenneth S. answered 03/15/17
Tutor
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Algebra II EXPERT will help you survive & prosper
(3+i) is also a zero, so the product (x-3-i)(x-3+i), which is a quadratic with all Real coefficients, can be divided out.
Then find the zeros of the quotient, which will also be quadratic.

Kenneth S.
Andre, multiply the two expressions that I wrote; then do the long division, dividing into the original quartic polynomial.
You need to (1) understand the instructions, and (2) do them.
When you get the quotient (quadratic), you FIND ITS ZEROS, either by factoring or using quadratic formula.
YOU CAN CHECK YOUR RESULTS.
If you do this, and you have further questions, send them in--but SHOW YOUR WORK.
In this way, you will L E A R N.
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03/15/17
Andre W.
03/15/17