- #1
Chandasouk
- 165
- 0
http://img844.imageshack.us/img844/3293/17693169.jpg [Broken]
I follow it up to the third step, but how did they get the bottom denominators of -4? shouldn't it be -1?
I follow it up to the third step, but how did they get the bottom denominators of -4? shouldn't it be -1?
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