what is the plural of la salle de bains?

Deux salles de bains?

la salle de bain-->les salles de bain

deux salles de bain means two bathroom

do bain have a s? like bains?

because in my textbook it says "la salle de bains", so i was just wondering.

The plural form of "la salle de bains" is indeed "deux salles de bains."

To understand how to form the plural, it's helpful to know a bit about the grammar rules in French. In this case, "la salle de bains" means "the bathroom" in English, and "salle" is a noun that is feminine and singular.

When forming the plural of feminine nouns in French, you typically add an -s to the end of the word. However, there are some exceptions. In the case of "la salle de bains," the word "salle" remains the same in the plural form, and only the modifier "de bains" gets pluralized by adding an -s.

So, to express "two bathrooms" in French, you would say "deux salles de bains."

it's dificult to a "no-french person" understand this process:

normaly: la salle de bain, les salles de bain
BUT
if u have two (or more) "bath" in your bathroom so it's: la salle de bains les salles de bains
so u can choose if u want a 's' or not for 'bain(s)'