Answer :

Certainly! Let's explore the given problem step-by-step.

We start with the given equation:
[tex]\[ x + y + z = 0 \][/tex]

We need to find the value of:
[tex]\[ x^3 + y^3 + z^3 \][/tex]

There is a useful algebraic identity for the sum of cubes that we can use here:
[tex]\[ x^3 + y^3 + z^3 - 3xyz = (x + y + z)(x^2 + y^2 + z^2 - xy - yz - zx) \][/tex]

Given that:
[tex]\[ x + y + z = 0 \][/tex]

Substitute [tex]\( x + y + z = 0 \)[/tex] into the equation:
[tex]\[ x^3 + y^3 + z^3 - 3xyz = 0 (x^2 + y^2 + z^2 - xy - yz - zx) \][/tex]

Since anything multiplied by zero is zero:
[tex]\[ x^3 + y^3 + z^3 - 3xyz = 0 \][/tex]

Hence:
[tex]\[ x^3 + y^3 + z^3 = 3xyz \][/tex]

Now, let's compare this result with the given choices:
a. [tex]\( 2xyz \)[/tex]
b. [tex]\( xyz \)[/tex]

Clearly, [tex]\( 3xyz \)[/tex] does not directly match either of these options. The choices provided [tex]\( 2xyz \)[/tex] and [tex]\( xyz \)[/tex] do not directly correspond with the derived result.

Therefore, given the directly available choices and the discrepancy noted, we conclude:
[tex]\[ \text{Given choices do not directly match the identity, further context needed for precise selection.} \][/tex]