Khan Academy

Shifting & reflecting functions (K-A)

Verifying inverse functions by composition (K-A)

Verifying inverse functions by composition-link (K-A)

Verifying inverse functions by composition: not inverse (K-A)

Adding complex numbers (K-A)

Subtracting complex numbers (K-A)

Complex number operations review (K-A)

Multiplying complex numbers-link (K-A)

Multiplying complex numbers-video (K-A)

Plotting numbers on the complex plane (K-A)

The complex plane-link (K-A)

Classifying complex numbers (K-A)

Intro to complex numbers (K-A)

Intro to complex numbers-video (K-A)

i as the principal root of -1 (K-A)

Intro to the imaginary numbers (K-A)

Intro to the imaginary numbers-video (K-A)

Powers of the imaginary unit (K-A)

Powers of the imaginary unit-link (K-A)

Simplifying roots of negative numbers (K-A)

Adding & subtracting multiple polynomials (K-A)

Subtracting polynomials: two variables (K-A)

Dividing polynomials: long division (K-A)

Intro to long division of polynomials (K-A)

More examples of special products (K-A)