Resposta:
[tex] \color{yellow} \huge{ \boxed{ \boxed{ \tt \: = 25 - 10n + {n}^{2} }}}[/tex]
Explicação passo-a-passo:
[tex] \color{yellow} \huge \boxed{ \boxed{ \large\begin{array}{lr} \tt \:( - 5 + n)^{2} \\ \\ \tt \: aplique \: a \: f \acute{o}rmula \: do \: \\ \tt \: quadrado \:perfeito : \\ \tt \: (a + b) ^{2} = {a}^{2} + 2ab + b^{2} \\ \\ \tt \: ( - 5 + n {)}^{2} = ( - 5 {)}^{2} + 2( - 5)n + {n}^{2} \\ \\ \tt \: =( - 5 {)}^{2} + 2( - 5)n + {n}^{2} \\ \\ \tt \: simplificamos \: e \: temos : \\ \\ \tt \: ( - 5 {)}^{2} + 2( - 5)n + {n}^{2} : 25 - 10n + {n}^{2} \\ \\ \tt \: \boxed{ \tt = 25 - 10n + {n}^{2} }\end{array}}}[/tex]
[tex] \blue{ \boxed{ \boxed{ \red{\tt duvidas \: deixe \:nos \: comentarios \: }}}}[/tex]
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[tex] \red{\large\boxed{ \boxed{ \color{yellow}\tt\: espero \: ter \: ajudado }}} \\ \\ \\ \\ \red{\large \boxed{ \boxed{ \color{yellow} \tt\: bons \: estudos}}}[/tex]
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[tex] \red{ \large\boxed{ \large\boxed{ \color{yellow}\large \tt ASS =>> Starco \: \: Butterdiaz}}}[/tex]
