Posted by Julissa on Tuesday, January 20, 2009 at 2:01pm.
I can not read your symbols, assume radical for square root
sqrt 49 + sqrt 343 - sqrt 2401 ???
343 = 7^3
2401 = 7^4
so I have
7 + 7 sqrt 7 + 49
= 56 + 7 sqrt 7
forgot the negative
7 + 7 sqrt 7 - 49
- 42 + 7 sqrt 7
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