We are given expression : mn – 11 mn + 3 .
<em>We need to find like terms in order to add or subtract the polynomials.</em>
Like terms are the terms those have same variables.
In the given polynomial, we have first term mn and second term -11mn.
Both of the terms has mn variables with them.
So, we can subtract mn - 11mn.
mn could be written as 1mn.
Therefore, 1mn -11mn = -10mn.
<h3>Therefore, mn – 11 mn + 3 = -10mn.</h3>
