<PRE><B>Question 24684</B>
(9-6i)(9-6i)&lt;br&gt;

you have to F.O.I.L. this:&lt;br&gt;

First 9*9
Outer 9 * -6i
Inner 9 * -6i
Last -6i * -6i&lt;br&gt;

combining this into 1 equation and simplifying&lt;br&gt;

(81-54i-54i+36i^2)
81-108i+36i^2&lt;br&gt;

Note: i^2 = -1&lt;br&gt;

81-108i-36
45-108i</PRE>