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