Question
Subtract polynomials: $ \, \color{blue}{ 7d^2+5d+3 } \, $ , $ \, \color{orangered}{ d^2 }$.
Answer
$$ \left( \color{blue}{7d^2+5d+3} \right) - \color{orangered}{d^2} = 6d^2+5d+3 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 7d^2 & 5d & 3 \\ \color{red}{ - } & d^2 & & \\ \hline \end{array} $$Step 2: Change ALL the signs in the second row.
$$ \begin{array}{lrrr} & 7d^2 & 5d & 3 \\ \color{red}{ - } & -d^2 & & \\ \hline \end{array} $$Step 3: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 7d^2 & 5d & 3 \\ \color{red}{ - } & -d^2 & & \\ \hline & 8d^2 & 5d & 3 \end{array} $$This page was created using
Polynomial Operations Calculator