factorise 125x^3+225x^2y+135xy^2+27y^3
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Answer:
(5x + 3y)³
Step-by-step explanation:
125x³ + 225x²y + 135xy² + 27y³
= (5x)³ + 3×(5x)²×3y + 3×5x(3y)² + (3y)³
USING , (a-b)³ = a³+3a²b+3ab²+b³
= (5x + 3y)³
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