Chứng minh đẳng thức sau: (2x + y)(2x^2 + xy - y^2) = (2x - y)(2x^2 + 3xy + y^2)

Exercise 1.29, page 21, Math 8, Volume 1: Prove the following equality: (2x + y)(2x^2 + xy - y^2) = (2x - y)(2x^2 + 3xy + y^2) This is question 1.29, page 21 in the Math 8 textbook - Connecting Knowledge, Volume 1. In this video, I will guide you through answering question 1.29 on page 21. Please pay attention and follow along with me. If you find this video helpful, please help me spread the word by liking and sharing it. Subscribe to the channel to learn more interesting videos! Click the bell icon to receive notifications of the latest videos! Best regards! Watch the full answer to the Math 8 - Connecting Knowledge question here:    • Trả lời câu hỏi Toán lớp 8 - Kết nối tri thức