simplify
(9-m^2)7m^3 / (3-m)14m
please help i am stuck
9-m^2 = (3-m)(3+m)
So, the (3-m) factors cancel, and you have
(3+m) in the top.
Not sure just what the other stuff means; your use of numbers and carets is inconsistent.
Just recall that
u^n/u^m = u^(n-m)
whatever u is.