Factorise:
27x^3+125y^3
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Step-by-step explanation:
27x^3+125y^3
(3x)^3 + (5y)^3
(3x + 5y){ (3x)^2 + (5y)^2 - 3x. 5y}
(3x + 5y) ( 9x^2 + 25y^2 - 15xy )
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