Subtract polynomials: $ \, \color{blue}{ x^2+11x+28 } \, $ , $ \, \color{orangered}{ x+4 }$.
Answer
$$ \left( \color{blue}{x^2+11x+28} \right) - \left( \color{orangered}{x+4} \right) = x^2+10x+24 $$
Explanation
Step 1: Write second polynomial below the first one. Making sure like terms are lined up.
$$ \begin{array}{lrrr} & x^2 & 11x & 28 \\ \color{red}{ - } & & x & 4 \\ \hline \end{array} $$Step 2: Change ALL the signs in the second row.
$$ \begin{array}{lrrr} & x^2 & 11x & 28 \\ \color{red}{ - } & & -x & -4 \\ \hline \end{array} $$Step 3: Combine like terms (add each column):
$$ \begin{array}{lrrr} & x^2 & 11x & 28 \\ \color{red}{ - } & & -x & -4 \\ \hline & x^2 & 12x & 32 \end{array} $$This page was created using
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