In this lesson, the teacher demonstrates how to use the cross product to solve a proportion with a binomial. The example provided is a bit more complex than previous ones, but by representing x + 1 as 12 times x + 1, and then using the distributive property, the problem can be solved using simple algebraic techniques. The teacher stresses the importance of writing down the steps and practicing, as there will be a quiz later.
Solving a proportion with a binomial
I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exactly how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework. I post all of my videos on YouTube, but if you are looking for other ways to interact with me and my videos you can follow me on the following pages through My Blog, Twitter, or Facebook.