Algebra 2 - How to multiply complex numbers - Free Math Help - Online Tutor (6-2i) (2-3i)

Algebra 2 - How to multiply complex numbers - Free Math Help - Online Tutor (6-2i) (2-3i)

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video tutorial explains how to multiply complex numbers in their standard form using the FOIL method. It covers the multiplication of binomials, the properties of the imaginary unit i, and how to combine like terms to simplify the expression. The tutorial concludes with the final result in standard form.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the standard form of a complex number?

A - BI

A * B

A + BI

AB + I

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method is commonly used to multiply two binomials?

FOIL method

Cross method

Addition method

Subtraction method

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying 6 by -3 in the context of complex numbers?

-18

18

-18I

18I

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of i squared in complex numbers?

0

-1

i

1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After combining like terms, what is the final form of the expression 12 - 6 - 22I?

12 - 22I

12 + 22I

6 + 22I

6 - 22I