Question
Add $ \, \color{blue}{ 9x^2+12x+4 } \, $ and $ \, \color{orangered}{ 2x+5 }$.
Answer
$$ \left( \color{blue}{9x^2+12x+4} \right) + \left( \color{orangered}{2x+5} \right) = 9x^2+14x+9 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 9x^2 & 12x & 4 \\ \color{blue}{ + } & & 2x & 5 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 9x^2 & 12x & 4 \\ \color{blue}{ + } & & 2x & 5 \\ \hline & 9x^2 & 14x & 9 \end{array} $$This page was created using
Polynomial Operations Calculator