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Unformatted text preview: k if the product is equal to zero. Consider the following
product. ab = 6 In this case there is no reason to believe that either a or b will be 6. We could have a = 2 and
b = 3 for instance. So, do not misuse this fact!
To solve a quadratic equation by factoring we first must move all the terms over to one side of the
equation. Doing this serves two purposes. First, it puts the quadratics into a form that can be
factored. Secondly, and probably more importantly, in order to use the zero factor property we
MUST have a zero on one side of the equation. If we don’t have a zero on one side of the
equation we won’t be able to use the zero factor property.
Let’s take a look at a couple of examples. Note that it is assumed that you can do the factoring at
this point and so we won’t be giving any details on the factoring. If you need a review of
factoring you should go back and take a look at the Factoring section of the previous chapter. © 2007 Paul Dawkins 85 http://tutorial.math.lamar.edu/terms.aspx College Algebra Example 1 Solve each of the following equat...
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This note was uploaded on 06/06/2012 for the course ICT 4 taught by Professor Mrvinh during the Spring '12 term at Hanoi University of Technology.
- Spring '12