The polynomial B is represented by:
B = 20m + 28n - 32
<h3>What is a polynomial?</h3>
The given expressions are:
A = 6m + 2n - 1
C = 14m + 26n - 31
B is the sum of the expressions A and C
It can be represented mathematically as:
B. = A + C
B = 6m + 2n - 1 + 14m + 26n - 31
Collect like terms
B = 6m + 14m + 26n + 2n - 1 - 31
B = 20m + 28n - 32
Therefore, the polynomial B is represented by:
B = 20m + 28n - 32
Learn more on polynomials here: brainly.com/question/2833285