Answers

2015-12-10T20:16:19+08:00
Pattern for consecutive odd integers. Whatever the given values of m, you just substitute if ever there is.
m
m + 2
m + 4
m + 6

= 4m + 12
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2015-12-10T21:01:35+08:00
You said odd numbers so the numerical coefficients must be even numbers :) 

m + m + 2 + m + 4 + m + 6 = 4m + 12
          1st      2nd        3rd
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