Por que menos com menos dá mais? | Aula 08

In this video, we explain why multiplying two negative numbers results in a positive number, analyzing an algebraic demonstration based on the properties of integers. The theory arises from practice: we start with an initial expression and use the distributive property to demonstrate step-by-step why the product of two negative numbers is positive. Finally, we relate this idea to the division of integers through the concept of multiplicative inverse. The video "Why does minus times minus equal plus?" is part of the Integers playlist, dedicated to the study of positive and negative numbers and their operations, focusing on conceptual understanding, rigor, and clarity. 🔗 Integers Playlist:    • Números Inteiros   Chapters: 00:00 - The problem of minus times minus 00:55 - Algebraic demonstration of (−a)(−b)=ab 05:55 - Application to the division of integers If this video helped, please consider leaving a like. If you want, share your solution or reasoning in the comments. To infinity ♾️ #integers #ruleofsigns #multiplication #masteringmath #mathematics