factorise 125 x^3+y^3
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Answer:
125x³ + y³ = (5x + y) [ (5x)² - 5xy + y² ]
Step-by-step explanation:
125x³ + y³ = (5x)³ + y³
Using a³ + b³ = (a + b) (a² - ab + b² )
(5x)³ + y³ = (5x + y) [ (5x)² - 5xy + y² ]
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