The first step in simplifying this expression is to identify which, if any, terms can be combined. Remember, only like terms — constant terms or terms with the same variable and the same exponent — can be combined.
( 4m^2 - 6m + 5 )-( 6m^2 + 3m - 1 )
In this case, we have two m^2-terms, two m-terms, and two constants.
We can combine all terms, so to simplify the expression we will rearrange it according to the Commutative Property of Addition and then evaluate the difference between the like terms.
