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posted by Jeconiah on Tuesday, February 26, 2013 at 4:46am.
4a^2+9b^2+25c^2-12ab+20ac-30bc divided by 2a-3b+5c.
As I showed earlier, 4a^2 + 9b^2 + 25c^2 - 12ab + 20ac - 30bc = (2a-3b+5c)^2 So, divide and you get 2a-3b+5c
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