Applying the dot product between two vectors with a scalar

The video tutorial explains the concept of the dot product in mathematics, focusing on its relationship with constants. It demonstrates how to apply specific rules to simplify expressions involving the dot product. The tutorial includes a step-by-step example calculation, illustrating the process of multiplying vectors and summing the results to achieve the final answer.

Can you explain the calculation process that leads to the final result of -28?

What does the final statement 'That's it' imply about the conclusion of the topic discussed?