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2015-04-26T10:02:45+08:00
3(3m) / 4m(3m) - m+1 / 12m^2
9m-m-1/ 12m^2
8m-1/ 12m^2

* ^ means power of, / means over
1 5 1
2015-04-26T21:15:08+08:00
3 + 4m - m+1 + 12m² = 12m² + 3m + 4