MathDistributive Property
posted by Samantha .
Use the distributive property to simplify: 3(m1)(2m+1)How would you do this?
This is all I have 3m12m+1 I don't know if that right or what to do from there. Your help is greatly appreciated.

not right. look at the second term:
(2m+1)=2m1
you missed a sign. 
besides that you multiplied the first term incorrectly
3(m1) is 3m3 , and not 3m1