(6x-9y)power to be 3
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hey your answer is :-
Q. ( 6x - 9y) ^3.
=> (6)^3 - (9)^3 - (3× 6x^2× 9y) + (3×6x × 9y^2)
=> 216 - 729 - 162x^2y + 162xy^2
=> - 513 - 162x^2y + 162xy^2
mark as brain list and thanks my 20 answer....
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