CPM Homework Help : PC3 Problem 11-100

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Home > PC3 > Chapter 11 > Lesson 11.2.2 > Problem 11-100

11-100.

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

$(4 + 3i) – (2 – 4i)$
Step (a):
4 + 3i − 2 + 4i

$(4 - 2i)(3 + 4i)$
Hint (b):
Use the Distributive Property. You should have four terms before combining like terms and simplifying.

$(3 - 5i)^2$
Step (c):
$(3 − 5i)(3 − 5i)$

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

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