Simplifying Rational Expressions | MathHelp.com - By MathHelp.com
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| 00:0-1 | to simplify this rational expression , we use the same | |
| 00:04 | technique as in the previous example , first we factor | |
| 00:10 | , then cancel , so factoring the numerator in this | |
| 00:14 | problem we have a try no meal that factors as | |
| 00:18 | the product of two by no meals . So we're | |
| 00:21 | looking for factors of positive 18 that add to positive | |
| 00:26 | nine which are positive six and positive three . So | |
| 00:31 | we have X plus six times X plus three in | |
| 00:39 | the denominator . We're looking for factors of negative 12 | |
| 00:43 | that add to positive four , which are positive six | |
| 00:47 | and negative two . So we have X plus six | |
| 00:52 | times X minus two . Notice that our X-plus six | |
| 00:59 | is can now cancel out And we're left with X-plus | |
| 01:04 | three Over X -2 . |
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