Answer:
[tex]-5m^2+7m+8[/tex]
Step-by-step explanation:
We are given the equations
[tex](-m^2+6)+(-4m^2+7+2)[/tex]
We need to combine like terms. As there are no exponents or numbers outside the parenthesis, we can just drop them and add all like terms
[tex]-m^2+6-4m^2+7m+2\\\\-5m^2+7m+8[/tex]
