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# Real and Imaginary Roots of an Equation

Maths and statistics discussion, revision, exam and homework help.

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1. Real and Imaginary Roots of an Equation
Hi, could someone please tell me what to do next.

This is the question:

And first part is fine... I use the factor theorem to show that it is a root.

Part B, however after stating that if 'i' is a root then '-i' is also another root and that if we let the equation have the form f(x), then f(x)=(x-i)(x+i)q(x), where q(x) is a quadratic...

I dont know what to do.

Any ideas?
2. Re: Real and Imaginary Roots of an Equation
(x-i)(x+i) = ?
3. Re: Real and Imaginary Roots of an Equation
OH! , ok!

thank you, I get it now

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Last updated: May 4, 2012
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