Add $ \, \color{blue}{ 12x^2-7 } \, $ and $ \, \color{orangered}{ x^2-5x-3 }$.
Answer
$$ \left( \color{blue}{12x^2-7} \right) + \left( \color{orangered}{x^2-5x-3} \right) = 13x^2-5x-10 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 12x^2 & & -7 \\ \color{blue}{ + } & x^2 & -5x & -3 \\ \hline \end{array} $$Step 2: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 12x^2 & & -7 \\ \color{blue}{ + } & x^2 & -5x & -3 \\ \hline & 13x^2 & -5x & -10 \end{array} $$This page was created using
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