Factorize:
$a^{3}+0.008$
$a^{3}+0.008=a^{3}+(0.2)^{3}$
$=(a+0.2)\left[a^{2}-a \times(0.2)+(0.2)^{2}\right]$
$=(a+0.2)\left(a^{2}-0.2 a+0.04\right)$
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