Question
Add $ \, \color{blue}{ 8x^2+3x+4 } \, $ and $ \, \color{orangered}{ 3x^2+5x+8 }$.
Answer
$$ \left( \color{blue}{8x^2+3x+4} \right) + \left( \color{orangered}{3x^2+5x+8} \right) = 11x^2+8x+12 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 8x^2 & 3x & 4 \\ \color{blue}{ + } & 3x^2 & 5x & 8 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 8x^2 & 3x & 4 \\ \color{blue}{ + } & 3x^2 & 5x & 8 \\ \hline & 11x^2 & 8x & 12 \end{array} $$This page was created using
Polynomial Operations Calculator