SOLUTION: <img src="http://img177.imageshack.us/img177/9696/mathnd7.png"> I NEED HELP! :]

Question 117518:
I NEED HELP! :]
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
I'm assuming P(x) is of the form,

a) From the properties of i,

So if P(i)=0, then

For P(i)=0, both the real and complex parts must equal zero.
Real part

Complex part

b.) The assumption is d=b and c=a, so let's look at P(-i).

Yes, then P(-i)=0.
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