Bucks County Community College AccuPlacer Placement Test Prep - MATHhelp.com - By MathHelp.com
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| 00:0-1 | The following is a selected video from your teacher.com where | |
| 00:03 | you can browse over 450 complete math lessons with example | |
| 00:07 | videos , interactive practice problems , self tests and more | |
| 00:11 | . Try a complete lesson today at your teacher dot | |
| 00:14 | com . The classic mistake that students making this problem | |
| 00:20 | is to say that N plus three squared means n | |
| 00:24 | squared plus three squared or n squared plus nine . | |
| 00:30 | Remember however that N plus three squared means n plus | |
| 00:34 | three times itself or N plus three Times and Plus | |
| 00:42 | three . So we really have to buy no meals | |
| 00:47 | that are multiplying together . And to simplify this problem | |
| 00:51 | , we must use the foil method . So the | |
| 00:54 | products of the first terms N times N is N | |
| 00:58 | squared Plus the product to the outer terms end times | |
| 01:02 | positive three is positive three in plus the part of | |
| 01:07 | the inner terms positive three times in is positive three | |
| 01:11 | in Plus a part to the last terms positive three | |
| 01:15 | times positive three , which is positive nine combining our | |
| 01:21 | middle terms . We have n squared plus six N | |
| 01:26 | plus nine for our final answer . Remember whenever you | |
| 01:33 | square a binomial , you must write it out as | |
| 01:37 | that binomial times itself , then foil . |
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