Simplifying the Expression (3x+5y)² - (3x-5y)²
This expression involves squaring binomials and subtracting the results. We can simplify this using the difference of squares pattern:
Difference of Squares Pattern: a² - b² = (a + b)(a - b)
Let's apply this pattern to our expression:
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Identify 'a' and 'b':
- a = (3x + 5y)
- b = (3x - 5y)
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Substitute into the pattern:
- (3x + 5y)² - (3x - 5y)² = [(3x + 5y) + (3x - 5y)][(3x + 5y) - (3x - 5y)]
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Simplify the expression:
- [(3x + 5y) + (3x - 5y)][(3x + 5y) - (3x - 5y)] = (6x)(10y) = 60xy
Therefore, the simplified form of (3x+5y)² - (3x-5y)² is 60xy.