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(x-y)³+(y-2)³+(z-x)³ |
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Answer» e,When a + b + C = 0 we know that a³ + b³ + c³ = 3 a b c ( x - y )³ + ( y - z )³ + ( z - x )³ = 3 ( x - y ) ( y - z ) ( z - x )) + YZ ) ( z - x )y - + x - z + - xyz) ( z - y ) + ( y - z ) + ( x - z )]______________________________________Similarly, x - 2y + 2y - 3z + 3z - x = 0Hence, ( x - 2y )³ + ( 2y - 3z )³ + ( 3z - x )³ = 3 ( x - 2y ) ( 2y - 3z ) ( 3z - x )Hope it helps... |
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