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