[tex](n+5) ^{2} = (n+5)(n+5)[/tex]
Now we use FOIL to rewrite the expression.
FOIL is:
First
Outer
Inner
Last
That's the order we will be distributing the variables in the parentheses.
[tex] n^{2} + 5n +5n +25[/tex]
Combine like terms:
[tex] n^{2}+10n+25 [/tex]
That's your final answer.
Hope that helps.