Hi,

How to find the equation if one root of a quadratic equation is 1 + 3i.

Pls help!

Regards,

Suganya

Easy calculation

To Focus

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- Aug 1st 2007, 12:57 AMsuganyaQuadratic Equation
Hi,

How to find the equation if one root of a quadratic equation is 1 + 3i.

Pls help!

Regards,

Suganya

Easy calculation

To Focus - Aug 1st 2007, 01:06 AMtukeywilliams
Then the other root is $\displaystyle 1-3i $.

So $\displaystyle (x-(1+3i))(x-(1-3i)) = 0 $ or $\displaystyle x^2 - 2x + 10 = 0 $.