Add $ \, \color{blue}{ 3x^5+1 } \, $ and $ \, \color{orangered}{ 9x^5+3x-2 }$.
Answer
$$ \left( \color{blue}{3x^5+1} \right) + \left( \color{orangered}{9x^5+3x-2} \right) = 12x^5+3x-1 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 3x^5 & & 1 \\ \color{blue}{ + } & 9x^5 & 3x & -2 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 3x^5 & & 1 \\ \color{blue}{ + } & 9x^5 & 3x & -2 \\ \hline & 12x^5 & 3x & -1 \end{array} $$This page was created using
Polynomial Operations Calculator