### Home > INT2 > Chapter 11 > Lesson 11.2.3 > Problem11-84

11-84.

Multiply each of the following expressions.

1. $(x - i)(x - i)$

$(i)^2 = -1$

1. $(x - 2i)(x - 2i)$

$x^2 - 4xi - 4$

1. Write the expression $x^2 - 6ix - 9$ as a product.

$(x - 3i)(x - 3i)$