Question
Add $ \, \color{blue}{ 6y^2+y-5 } \, $ and $ \, \color{orangered}{ 9y^2-y-8 }$.
Answer
$$ \left( \color{blue}{6y^2+y-5} \right) + \left( \color{orangered}{9y^2-y-8} \right) = 15y^2-13 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 6y^2 & y & -5 \\ \color{blue}{ + } & 9y^2 & -y & -8 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 6y^2 & y & -5 \\ \color{blue}{ + } & 9y^2 & -y & -8 \\ \hline & 15y^2 & & -13 \end{array} $$This page was created using
Polynomial Operations Calculator