Question

factorise a³-3a²b+3ab²-b³

Answer Answer


factorise a³-3a²b+3ab²-b³

Answer Answer

factorise a³-3a²b+3ab²-b³

Answer Answer

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Answer 1

Answer:

a-b whole cube is the answer

Answer 2

Answer:

Solution :-

➜ a³ - 3a²b + 3ab² - b³

➞ a³ - a²b - 2a²b + 2ab² + ab² - b³

➞ a²(a - b) - 2ab(a - b) + b²(a - b)

➞ (a - b) (a² - 2ab + b²)

➞ (a - b) (a - b)²

➞ (a - b)³

∴ The answer of this question is (a - b)³