( x + 3 )³ - ( x³ + y³ ) guys please help
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x³ + y³ + 3xy(x + y) - x³ - y³
= 3xy(x + y)
= 3x²y + 3xy²
Hope it helps u...
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Question- (x+y)cube -(x cube +y cube)
formula- x cube + 3 cube + 3x into (x -3 ) =( x +3 ) cube..
(x+y) [x square- xy+ y square]=(x cube+ y cube)..
so=x cube +3 cube + 3x into 3 ( x- 3) [x square- xy + y square]
solve it...
hope this help you..
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