(3x)3 -(5y)3 evaluate or simplify
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Given Equation is (3x - 5y)³ - (3x + 5y)³
∴ a³ - b³ = (a - b)(a² + b² + ab)
= (3x - 5y - 3x - 5y)[(3x + 5y)² + (3x - 5y)² + (3x + 5y)(3x - 5y)]
= (-10y)[9x² + 25y² + 30xy + 9x² + 25y² - 30xy + 9x² - 25y²]
= (-10y)[27x² + 25y²]
= -270x²y - 250y³
Hope it helps!
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