CPM Homework Help : INT2 Problem 8-19

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Home > INT2 > Chapter 8 > Lesson 8.1.1 > Problem 8-19

8-19.

Multiply the following complex numbers. Write your answers in $a+bi$ form.

$(9i)(2i)$
Hint (a):
Remember that $i^2 = -1$ .

$(2 + i)(5 - i)$
Answer (b):
$11 + 3i$

$(3 - i)(13i)$

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