Occasionally I have a long equation in math mode that overflows into the margins. When this happens, I usually experiment with a line break at various reasonable parts of the equation. Sometimes, such as in the image below, it is unavoidable for me to end up with some ugly white space due to an early line break. For example, see the image below.
Sometimes, when reading papers, I notice they have an issue where the words in a particular line of text will be equally spaced such that they fill all the horizontal space up to the margins. This looks especially strange if a line only has 3 or 4 words.
Is it possible for me to force that behavior so that the line
We define a distinguishing vertex labelling for $G_1\star G_2$ with
is spaced such that each space is uniformly increased until the line doesn't leave the extra 9 or so characters worth of whitespace at the end?

\linebreakinstead. But use carefully. In general, it is better to let LaTeX do the job. – Sigur Dec 04 '19 at 14:57\sloppyor increase\emergencystretch. You might want to check out https://tex.stackexchange.com/questions/241343/what-is-the-meaning-of-fussy-sloppy-emergencystretch-tolerance-hbadness – StrongBad Dec 04 '19 at 15:56\linebreakinstead of\newlineyou will have exactly the problem you describe in the question with words unreadably far apart, just to maintain the margin? – David Carlisle Dec 04 '19 at 17:18\linebreakcan not produce exactly the undesirable output you describe here "I notice they have an issue where the words in a particular line of text will be equally spaced such that they fill all the horizontal space up to the margins. This looks especially strange" – David Carlisle Dec 05 '19 at 07:42