91Ó°ÊÓ

In the following exercises, multiply.

$(4-5i)(4+5i)$

In the following exercises, multiply.

$(7-2i)(7+2i)$

In the following exercises, multiply.

$(-3-8i)(-3+8i)$

In the following exercises, multiply using the Product of Complex Conjugates Pattern.

$(7-i)(7+i)$

In the following exercises, multiply using the Product of Complex Conjugates Pattern.

$(6-5i)(6+5i)$

In the following exercises, multiply using the Product of Complex Conjugates Pattern.

$(9-2i)(9+2i)$

In the following exercises, multiply using the Product of Complex Conjugates Pattern.

$(-3-4i)(-3+4i)$

In the following exercises, divide.

$\frac{3+4i}{4-3i}$

In the following exercises, divide.

$\frac{5-2i}{2+5i}$

In the following exercises, divide.

$\frac{2+i}{3-4i}$