Mathematics Problems - MathHelp.com - 1000+ Online Math Lessons - 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 . To Simplify the Square Root of 40 . | |
| 00:20 | Notice that 40 is not a perfect square . So | |
| 00:24 | let's start by setting up a factor tree , 40 | |
| 00:29 | factors as two times 20 , 20 factors as two | |
| 00:36 | times 10 and 10 factors as two times 5 . | |
| 00:44 | So we have a pair of twos , Which means | |
| 00:49 | that a two can come out of the radical and | |
| 00:54 | we have a two and a five that don't pair | |
| 00:56 | up , Which means that a two and a five | |
| 01:00 | stay inside the radical , multiplying together to make 10 | |
| 01:06 | . So the square root of 40 simplifies to two | |
| 01:10 | Route 10 . |
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