Algebra Trick You NEED to Know: (a - b)² Formula Explained!

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🎓 Learn the powerful identity: (a - b)² = a² + b² - 2ab
In this video, we break down the formula step-by-step, show you how it works, and why it's important in algebra and beyond! Great for beginners and anyone revising for exams.

📚 What You’ll Learn:

The meaning behind (a - b)²

How to expand the expression