Add $ \, \color{blue}{ -4x^2+4x } \, $ and $ \, \color{orangered}{ -6x^2-8 }$.
Answer
$$ \left( \color{blue}{-4x^2+4x} \right) + \left( \color{orangered}{-6x^2-8} \right) = -10x^2+4x-8 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & -4x^2 & 4x & \\ \color{blue}{ + } & -6x^2 & & -8 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & -4x^2 & 4x & \\ \color{blue}{ + } & -6x^2 & & -8 \\ \hline & -10x^2 & 4x & -8 \end{array} $$This page was created using
Polynomial Operations Calculator