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what is the whole cube of (x+y+z)

[ X + Y + Z ]3

= [ X + Y + Z ] x [ X + Y + Z ] x [ X + Y + Z ]

= X3 + Y3 + Z3 + 3XY + 3YZ + 3XZ

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thats corect
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IF X1/​3+Y1/​3+Z1/​3=0

THEN FIND THE VALUE OF  X3+Y3+Z3
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(x+y+z) whole cube =x cube+y cube+ zcube+ 3xy+3yz+3zx
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THE EXPANSION OF [x3+y3+z3]
 = x3+y​3+z3+ 3(x+y)(y+z)(x+z)

 
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