Question

Qual é o polinomio que expressa a soma de x²-9x+5 e 7x?

Answer 1

✅ Após resolver os cálculos, concluímos que a soma dos referidos polinômios é:

      $\Large\displaystyle\text{ \begin{gathered}\boxed{\boxed{\:\:\:\bf S(x) = x^{2} - 2x + 5 \:\:\:}}\end{gathered} }$

Sejam os polinômios:

         $\Large\begin{cases} P(x) = x^{2} - 9x + 5\\Q(x) = 7x\end{cases}$

Calculando a soma dos polinômios, temos:

       $\Large\displaystyle\begin{gathered} S(x) = P(x) + Q(x)\end{gathered}$  

                   $\Large\displaystyle\begin{gathered} = (x^{2} - 9x + 5) + (7x)\end{gathered}$

                   $\Large\displaystyle\begin{gathered} = x^{2} - 9x + 5 + 7x\end{gathered}$

                   $\Large\displaystyle\begin{gathered} = x^{2} - 2x + 5\end{gathered}$

✅ Portanto, a soma dos polinômios é:

            $\Large\displaystyle\begin{gathered} S(x) = x^{2} - 2x + 5\end{gathered}$

$\LARGE\displaystyle\text{ \begin{gathered} \underline{\boxed{\boldsymbol{\:\:\:Bons \:estudos!!\:\:\:Boa\: sorte!!\:\:\:}}}\end{gathered} }$

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