If $x = 2$ and $y = - 8$ find the value of $(x - y)^{3}$ .

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Solution

Given that
$x = 2$ and $y = - 8$

$(x - y)^{3} = [2 - (- 8)]^{3}$

$= (2 + 8)^{3}$

$= (10)^{3}$

$= 1000.$

Hence, the required value is $1000.$

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