Question
Add $ \, \color{blue}{ -4x^2-8x } \, $ and $ \, \color{orangered}{ -x^2-6x+8 }$.
Answer
$$ \left( \color{blue}{-4x^2-8x} \right) + \left( \color{orangered}{-x^2-6x+8} \right) = -5x^2-14x+8 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & -4x^2 & -8x & \\ \color{blue}{ + } & -x^2 & -6x & 8 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & -4x^2 & -8x & \\ \color{blue}{ + } & -x^2 & -6x & 8 \\ \hline & -5x^2 & -14x & 8 \end{array} $$This page was created using
Polynomial Operations Calculator