In the article "Como te gustan | Raíz cuadrada de 81 - Ellas Responden," the main idea revolves around getting women's opinions on a particular topic related to preferences. Specifically, the article seems to be exploring how women like their partners to be, using the example of the square root of 81. This mathematical analogy is likely used to represent the idea of finding the perfect match or ideal qualities in a partner. By asking women to share their thoughts on this topic, the article may be aiming to provide insights into what traits or characteristics women value in a potential romantic partner. Overall, the article appears to delve into the nuances of personal preferences and expectations in relationships, with a focus on the perspectives of women.