Question
Subtract polynomials: $ \, \color{blue}{ 8y^2+5y+6 } \, $ , $ \, \color{orangered}{ y+1 }$.
Answer
$$ \left( \color{blue}{8y^2+5y+6} \right) - \left( \color{orangered}{y+1} \right) = 8y^2+4y+5 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & 8y^2 & 5y & 6 \\ \color{red}{ - } & & y & 1 \\ \hline \end{array} $$Step 2: Change ALL the signs in the second row.
$$ \begin{array}{lrrr} & 8y^2 & 5y & 6 \\ \color{red}{ - } & & -y & -1 \\ \hline \end{array} $$Step 3: Combine like terms (add each column):
$$ \begin{array}{lrrr} & 8y^2 & 5y & 6 \\ \color{red}{ - } & & -y & -1 \\ \hline & 8y^2 & 6y & 7 \end{array} $$This page was created using
Polynomial Operations Calculator