# Math Help - reverse foil complex number?

1. ## reverse foil complex number?

Hello,

I was wondering if it is possible to reverse foil:

$-\frac{1}{2}-\frac{\sqrt{3}}{2}i$

to get:

$(\frac{1}{2}-\frac{\sqrt{3}}{2}i)(\frac{1}{2}-\frac{\sqrt{3}}{2}i)$

2. Originally Posted by desiderius1
Hello,

I was wondering if it is possible to reverse foil:

$-\frac{1}{2}-\frac{\sqrt{3}}{2}i$

to get:

$(\frac{1}{2}-\frac{\sqrt{3}}{2}i)(\frac{1}{2}-\frac{\sqrt{3}}{2}i)$
The best you can do is take out the common factor of $-\frac{1}{2}$.

So $-\frac{1}{2} - \frac{\sqrt{3}}{2}i = -\frac{1}{2}(1 - \sqrt{3}i)$.