Question
Add $ \, \color{blue}{ 8a^2+2a+8 } \, $ and $ \, \color{orangered}{ 9a^3+7a^2+5a+9 }$.
Answer
$$ \left( \color{blue}{8a^2+2a+8} \right) + \left( \color{orangered}{9a^3+7a^2+5a+9} \right) = 9a^3+15a^2+7a+17 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrrr} & & 8a^2 & 2a & 8 \\ \color{blue}{ + } & 9a^3 & 7a^2 & 5a & 9 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrrr} & & 8a^2 & 2a & 8 \\ \color{blue}{ + } & 9a^3 & 7a^2 & 5a & 9 \\ \hline & 9a^3 & 15a^2 & 7a & 17 \end{array} $$This page was created using
Polynomial Operations Calculator