Question
Add $ \, \color{blue}{ 4b^2+4b+3 } \, $ and $ \, \color{orangered}{ 9b^2+7b+9 }$.
Answer
$$ \left( \color{blue}{4b^2+4b+3} \right) + \left( \color{orangered}{9b^2+7b+9} \right) = 13b^2+11b+12 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 4b^2 & 4b & 3 \\ \color{blue}{ + } & 9b^2 & 7b & 9 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 4b^2 & 4b & 3 \\ \color{blue}{ + } & 9b^2 & 7b & 9 \\ \hline & 13b^2 & 11b & 12 \end{array} $$This page was created using
Polynomial Operations Calculator