imaginary-numbers-explained-adding-subtracting-multiplying-dividing-solving-graphing

This algebra 1 & 2 introduction video tutorial shows you how to add and subtract complex numbers, how to multiply and divide imaginary numbers in addition to graphing and solving equations with complex numbers. Examples include the following topics:

Simplifying complex imaginary numbers:

i^7, i^11, i^15, i^303

Adding and Subtracting Complex Numbers:

(4+3i) + (2+5i)

8(2+5i)-3(4-7i)

Multiplying Imaginary Numbers:

(3+7i)(2-5i)

Dividing Complex Numbers: (using the conjugate of the denominator / rationalizing)

(3+2i)/(5-3i)

7/(5+i)

Solving Equations Involving Complex Imaginary Numbers:

3x + 5i = 9 + 2oyi

x^2 + 25 = 0

Graphing Complex Numbers:

3 + 2i and 2 - 4i

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