## Complex Numbers – Basic Operations

This algebra 2 video tutorial explains how to perform operations using complex numbers such as simplifying radicals, adding and subtracting complex numbers, simplifying it in standard form, graphing complex numbers and calculating the absolute value of complex numbers. This video contains plenty of examples and practice problems. It’s useful for students taking algebra 2, precalculus or college algebra.

Here is a list of topics:

1. Simplifying Radicals and Square Roots – Complex Numbers

2. Standard Form of Complex Numbers – a+bi

3. Graphing Complex Numbers – Real vs Imaginary Axis

4. Adding and Subtracting Complex Numbers

5. Multiply and Dividing Complex Numbers

6. Operations With Imaginary Numbers – Addition, Subtraction, Multiplication and Division

7. Simplifying Complex Numbers With Large Exponents

8. Absolute Value Formula of Complex Numbers

9. i, i^2, i^3, and i^4 Values

10. Complex Numbers – Multiplying By The Conjugate

11. Complex Imaginary Numbers – Using The Distributive Property

12. Foiling With Complex Numbers

13. Solving Quadratic Equations With Complex Imaginary Numbers

14. Factoring Quadratic Equations With Complex Numbers

15. Using The Quadratic Formula to Solve Quadratic Equations With Imaginary Solutions

16. Solving Linear Equations With Complex Numbers

17. Factoring Quadratic Equations With Fractions

18. Writing The Quadratic Equation Giving The Complex Roots or Imaginary Solutions / Zeros

19. Foiling Technique to Find Quadratic Equation Given Complex Numbers

20. Factoring Using Complex Conjugates

21. Sum and Product of Roots Given Quadratic Equation

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Feeling that I should pay the expensive tuition fee to this guy but not the god damm university…

24:32 why is it 9i over here? Isn't it supposed to be a 3i?

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24:30 square root of 9 is 3 bro )))

How do you get the fourth root of 81i, I looked everywhere and I can’t find an answer

Thank you so much!!!

I dont know how i can show u my respect and admiration i have for you. I am so thankful. I will be your premium user when i graduate.

BTW just going to point out a good amount in your calculations where wrong please check them

Why the Fuck is the video not playing???

Broo I really thank you so much for the help 😎

Thank you this helped alot

For the problem at 47:01 . Isn't the conjugate supposed to be (5-12i)? you multiplied the top and bottom of the fraction by (-5-12i). Someone please correct me if I'm mistaken, thank you.

You said √-9 =√9 √-1=3i

Now the way you have put it ….anyway thanks

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https://youtu.be/kL8zzq50HPs

good video

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God bless you!!

sqrt(-9) = 3i not 9i

24:53 the square root of -9 is 3i

24:50 the answer should be 11- 9i

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