Fontsize for text vs. math

Disclaimer: I am new to Latex, I apologize for the lack of specific and correct vocabulary to describe my question.

I am building an equation sheet and have a question about font sizes.

I would like to specify the font size for the text to be smaller than the font size for the equations.

I know I can do this by brute force (1st table), but that seems cumbersome and inelegant.

When I set the font size for the whole table the size of the equations also change (2nd table).

Is there any way to achieve the effects of the 1st table without defining the size of every text string?

\documentclass[table,9pt]{extarticle}
\usepackage[a4paper, landscape]{geometry}
\everymath{\displaystyle}

\begin{document}

\begin{tabular}{lll}
$\frac{N(x)}{(ax+b)(cx+d)}$ & \small{Linear Factors}    & $\frac{A}{ax+b}+\frac{B}{cx+d}$\\ [3.5ex]
$\frac{N(x)}{(ax+b)^2}$     & \small{Repeated}      & $\frac{A}{ax+b}+\frac{B}{(ax+b)^2}$\\[10ex]
\end{tabular}

\small{

\begin{tabular}{lll}
$\frac{N(x)}{(ax+b)(cx+d)}$ & Linear Factors    & $\frac{A}{ax+b}+\frac{B}{cx+d}$   \\  [3.5ex]
$\frac{N(x)}{(ax+b)^2}$     & Repeated          & $\frac{A}{ax+b}+\frac{B}{(ax+b)^2}$\\
\end{tabular}
}

\end{document}
• Do you want the text font size to be smaller throughout the whole document, or only in the table? – preferred_anon Jun 28 '18 at 19:45
• I guess you are stumbling over the usual \small{...} vs. {\small ...} issue. Put the curly braces before \small. – user121799 Jun 28 '18 at 19:49
• \small{Linear Factors} should be \small Linear Factors with no braces, it is delimited already by the table cell, and the {} around the text does nothing. – David Carlisle Jun 28 '18 at 19:53

Just one approach: Make the column use smaller text (\tiny here for the sake of showing a clear difference).

And please note: Use font size commands within the group they should resize. \documentclass[table,9pt]{extarticle}
\usepackage[a4paper, landscape]{geometry}
\everymath{\displaystyle}

\usepackage{array}

\begin{document}

\begin{tabular}{lll}
$\frac{N(x)}{(ax+b)(cx+d)}$ & {\small Linear Factors}    & $\frac{A}{ax+b}+\frac{B}{cx+d}$\\ [3.5ex]
$\frac{N(x)}{(ax+b)^2}$     & {\small Repeated}      & $\frac{A}{ax+b}+\frac{B}{(ax+b)^2}$\\[10ex]
\end{tabular}

\begin{tabular}{l>{\tiny}ll}
$\frac{N(x)}{(ax+b)(cx+d)}$ & Linear Factors    & $\frac{A}{ax+b}+\frac{B}{cx+d}$   \\  [3.5ex]
$\frac{N(x)}{(ax+b)^2}$     & Repeated          & $\frac{A}{ax+b}+\frac{B}{(ax+b)^2}$\\
\end{tabular}

\end{document}