The problem asks to simplify the expression $(5m^2 - 2m + 3) + (4m - 2m^2 + 7)$.

1. Problem Description

The problem asks to simplify the expression $(5m^2 - 2m + 3) + (4m - 2m^2 + 7)$.

2. Solution Steps

First, we remove the parentheses:

$5m^2 - 2m + 3 + 4m - 2m^2 + 7$

Next, we group like terms together:

$(5m^2 - 2m^2) + (-2m + 4m) + (3 + 7)$

Combine like terms:

$(5 - 2)m^2 + (-2 + 4)m + (3 + 7)$

$3m^2 + 2m + 10$

3. Final Answer

$3m^2 + 2m + 10$