Factoring the Expression (2ab + 3c)(2ab - 3c)
This expression is a classic example of the difference of squares pattern in algebra. Let's break down how to factor it:
Understanding the Difference of Squares
The difference of squares pattern states: a² - b² = (a + b)(a - b)
In our expression, we can identify the following:
- a = 2ab
- b = 3c
Applying the Pattern
- Square the first term: (2ab)² = 4a²b²
- Square the second term: (3c)² = 9c²
- Subtract the squares: 4a²b² - 9c²
Now, we can rewrite our original expression using the difference of squares pattern:
(2ab + 3c)(2ab - 3c) = 4a²b² - 9c²
Conclusion
By recognizing the difference of squares pattern, we were able to easily factor the expression (2ab + 3c)(2ab - 3c) into 4a²b² - 9c². This demonstrates the power of pattern recognition in simplifying algebraic expressions.