Answer:
The difference of the given polynomial is -2m-2n+2
Explanation:
The difference of the polynomial is greater number minus smaller number
we have expression (4m-5)-(6m-7+2n)
After opening the parenthesis we will get 4m-5-6m+7-2n
Now, solving like terms with each other means simplifying terms of "n" with "n" and "m" with "m"we will get -2m+2-2n
Therefore, the difference of the given polynomial is -2m-2n+2