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Question

factorise x cube minus one upon x cube minus a upon X Plus a

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Solution

Dear StudentI assume your question as :x3 - 1x3 - ax + axHere is the answer. x3 - 1x3 - ax + ax=x3 - 1x3 + ax - ax=x - 1xx2 + 1x2 + x × 1x + ax - 1x=x - 1xx2 + 1x2 + 1 + aUSING IDENTITY :a3 - b3 = a-ba2+b2+ab

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