SOLUTION: I need helping sloving this problem. Write a third degree polynomial equation withreal coefficients and the given roots.2,2+i. Also what does i equal.

Question 243632: I need helping sloving this problem. Write a third degree polynomial equation withreal coefficients and the given roots.2,2+i. Also what does i equal.
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
I need helping sloving this problem. Write a third degree polynomial equation withreal coefficients and the given roots.2,2+i. Also what does i equal.
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2+i is a complex number, and complex roots come in conjugate pairs, so the 3rd root is 2-i.
The equation is (x-2)*(x -2+i)*(x - 2-i) = 0

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