Add $ \, \color{blue}{ 66x^3+120x^2 } \, $ and $ \, \color{orangered}{ 80x^2-24x }$.
Answer
$$ \left( \color{blue}{66x^3+120x^2} \right) + \left( \color{orangered}{80x^2-24x} \right) = 66x^3+200x^2-24x $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 66x^3 & 120x^2 & \\ \color{blue}{ + } & & 80x^2 & -24x \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 66x^3 & 120x^2 & \\ \color{blue}{ + } & & 80x^2 & -24x \\ \hline & 66x^3 & 200x^2 & -24x \end{array} $$This page was created using
Polynomial Operations Calculator