Question
Add $ \, \color{blue}{ 300x^3+15x-90 } \, $ and $ \, \color{orangered}{ 80x+100 }$.
Answer
$$ \left( \color{blue}{300x^3+15x-90} \right) + \left( \color{orangered}{80x+100} \right) = 300x^3+95x+10 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 300x^3 & 15x & -90 \\ \color{blue}{ + } & & 80x & 100 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 300x^3 & 15x & -90 \\ \color{blue}{ + } & & 80x & 100 \\ \hline & 300x^3 & 95x & 10 \end{array} $$This page was created using
Polynomial Operations Calculator