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