27 x cube + y cube + Z cube minus 9 x y z factorise the following equation using appropriate identity
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(3x)³+(y)³+(Z)³-9xyz=(3x)²+(y)²+(Z)²-3x.y-y.z-z.3x
identity is a3 + b3 + c3 - 3abc = (a + b + c )(a2 + b2 + c2 -ab - ac -bc)
identity is a3 + b3 + c3 - 3abc = (a + b + c )(a2 + b2 + c2 -ab - ac -bc)
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