Answer:
[tex]\boxed {3m^{2} + n + 8}[/tex]
Step-by-step explanation:
Simplify the following expression:
[tex](3m^{2} + 8 - 3) + (n + 3)[/tex]
-Subtract [tex]3[/tex] from [tex]8[/tex]:
[tex](3m^{2} + 8 - 3) + (n + 3)[/tex]
[tex]3m^{2} + 5 + n + 3[/tex]
-Add [tex]5[/tex] and [tex]3[/tex]:
[tex]3m^{2} + 5 + n + 3[/tex]
[tex]\boxed {3m^{2} + n + 8}[/tex]
Therefore, the final answer is [tex]3m^{2} + n + 8[/tex].
