• Aug 1st 2007, 12:57 AM
suganya
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 AM
tukeywilliams
Then the other root is $1-3i$.

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