Student Video #1: Unit F Concept 10

By Kassie and Cecilia

• What is this video about?

This video covers an example from Unit F Concept 10. Concept 10 in this unit deals with us putting all the concepts together of this unit to ultimately figuring out the zeroes and the factorization of the polynomials. Such concepts included in this once concept are using the pq's, figuring out how many positive and negative real zeroes there are, and using synthetic division to figure out the zeroes. Also we are to now put the zeroes into there factored form so that we find the complete factorization of the polynomial. This video covers the complete process of concept 10 but also includes other practicing techniques of the same unit in this single problem.

• What does the viewer need to pay special attention to in order to understand the concept?

The viewer need to pay attention to each step we do so that they could ultimately figure out the correct answer. For example, you should not just blow off the pq's because when using synthetic division to find zeroes it is important that you limit your options so that you don't waste so much time trying to guess which numbers fit. In order to all understand the concept you must make sure that you pay attention to the detail and steps taken to figure out the right answer.

• What is this video about?

This video covers an example from Unit H Concept 7. Concept 7 is all about using what we have learned from previous concepts and applying them to another more complex problem, such as applying the knowledge we have of bringing one log together and then expanding it. We also use substitution in this concept when figuring out the expanded out log and plugging in the correct variable or number into the equation. In this lesson we also review how multiplication while solving logs, turns into addition. The main focus of this concept is to use the clues given to us to figure out the log given so that we can expand the log and substitute the values of the logs we expanded to form a new simplified equation. 

    

• What does the viewer need to pay special attention to in order to understand the concept?

The viewer needs to pay attention to each of the steps taken to ultimately figuring out the correct solution to the problem of finding logs with clues. Also, to be successful in solving this type of problem we need to remember to use two of the log properties to add onto our list even though they are not written on the paper. We need to be responsible enough to remember to the two properties that are log base b of b= 1 and log base b of 1=0. These two properties are two extra clues that can be used to helps us figure out what to substitute once expanding the logs. In order to also understand the concept it is critical that you remember that the logs with fractions may need to be multiplied by a number on top or bottom so that one of the clues given can show up. In your ultimate answer there should not be a log it should be the values given when substituted.