This video lesson demonstrates how to divide with complex numbers, including the imaginary number i. The tutorial includes detailed examples. [3:26]

This video lesson demonstrates how to draw a cube in a three-dimensional coordinate system.

This video lesson demonstrates how to simplfy and multiply rational expressions. Students can check their understanding with an assessment.

Students watch a video lesson that demonstrates how to solve exponential equations using logarithms. The tutorial includes two detailed examples. [2:38]

This video tutorial demonstrates how to solve a linear system of equations by graphing. The lesson includes detailed examples.

This lesson will explain the general addition rule for probability. It is 3 of 4 in the series titled "Either/Or Probability for Overlapping Events." [5:08]

This lesson will explain the rule for finding the probability of at least one of two or more non-overlapping events happening. It is 4 of 4 in the series titled "Either/Or Probability for Non-Overlapping Events." [4:33]