### Home > PC3 > Chapter 11 > Lesson 11.2.2 > Problem11-100

11-100.

Simplify the following expressions. Write your answers in $a + bi$ form.

1. $(4 + 3i) – (2 – 4i)$

4 + 3i − 2 + 4i

1. $(4 - 2i)(3 + 4i)$

Use the Distributive Property. You should have four terms before combining like terms and simplifying.

1. $(3 - 5i)^2$

$(3 − 5i)(3 − 5i)$

1. $\frac { 1 + i } { 1 - i }$

$\frac{1+i}{1-i}\left( \frac{1+i}{1+i}\right)$