Squaring a complex number then simplifying

Squaring a complex number then simplifying

Assessment

Interactive Video

Mathematics, Information Technology (IT), Architecture

11th Grade - University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial addresses common mistakes in binomial multiplication, emphasizing the incorrect application of power distribution across addition or subtraction. It explains the correct method using the distributive property and introduces the FOIL method for multiplying binomials. The tutorial further demonstrates multiplying complex numbers using the FOIL method, ensuring results are expressed in standard form.

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common mistake students make when dealing with binomials?

Using the FOIL method

Applying the distributive property

Distributing powers across addition

Multiplying coefficients correctly

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which method can help remember the steps to multiply binomials?

FOIL method

Standard form

Power distribution

Complex multiplication

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'F' in FOIL stand for?

Fraction

Factor

Final

First

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When multiplying complex numbers, what does i^2 equal?

0

i

1

-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying 2 - 5i by itself?

0

4 + 25i

10i

-21 - 20i

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