Factorise 216x^3+343y^3
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Answer:
(6x + 7y) (36x² - 42xy + 49y²)
Step-by-step explanation:
Applying Identity
x³ + y³ = ( x + y ) ( x² - xy + y²)
216x³ + 343y³
= (6x)³ + (7y)³
= (6x + 7y) (36x² - 42xy + 49y²)
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