This is a free lesson from our course in Algebra I
In this lesson, you'll learn how to work with polynomials using the concept of ratios. You'll also see how to factor the numerator and the denominator of a rational expression, cancel out the common factors
and reduce the expression into its lowest terms. For example, let's say you have
to simplify the expression (9b2 - 4)/(3b2
- 11b + 6). To do this, you can factor the numerator 9b2
- 4 to arrive at (3b + 2)(3b - 2), and the denominator 3b2
- 11b + 6 to get (3b - 2)(b - 3). As both the expressions
have a common factor, i.e. (3b - 2), it is canceled out, and the remaining
simplified expression is (3b + 2)/(b - 3).
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As many of you know, Winpossible's online courses use a unique teaching method where
an instructor explains the concepts in any given area to you in his/her own voice
and handwriting, just like you see your teacher explain things to you on a blackboard
in your classroom. This particular lesson includes the teacher's instruction, practice
questions as well as end-of-lesson quizzes for practice. As we mentioned above,
you can
enroll in our online course in Algebra I by clicking here.
The format of Winpossible's online courses is also very suitable for teachers who
are using an interactive whiteboard such as Smartboard on Promethean in their classrooms,
because the course lessons can be easily displayed on such interactive whiteboards.
Volume pricing is available for schools interested in our online courses. For more
information, please contact us at educators@winpossible.com.
