Question

the following identity: 5th
$x ^{3} + y {}^{3} + z ^{3} - 3xyz = (x + y + z)(x {}^{2} y {}^{2} z {}^{2} (x {}^{2} + y {}^{2} + z {}^{2} - xy - yz - zx)$
plz solve these formula identity 5.
solve this with example .
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Answer 1

Answer:

2x”-3xyz=>x(2x2->xy), Therefore Xx"-zyz= 2xyz, =2(\/g – A/r) (</r-A/p) (A/? ... Evaluate (1+ y+z)(1+2+2)(1+x+y) when z= x/2, y=x/3, 2= \/5.

Answer 2

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