Question
Add $ \, \color{blue}{ 2-4 } \, $ and $ \, \color{orangered}{ 2-4 }$.
Answer
$$ \left( \color{blue}{2-4} \right) + \left( \color{orangered}{2-4} \right) = -4 $$
Explanation
Step 1: First we have to write polynomials in descending order.
$$ \begin{aligned} P(x) &= -2 \\ Q(x) &= -2 \\ \end{aligned} $$Step 2: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lr} & -2 \\ \color{blue}{ + } & -2 \\ \hline \end{array} $$Step 3: Combine like terms (add each column):
$$ \begin{array}{lr} & -2 \\ \color{blue}{ + } & -2 \\ \hline & -4 \end{array} $$This page was created using
Polynomial Operations Calculator