$${ 4 }^{ 2 } -4 \times 2 \times (-47)$$
$392$
$$16-4\times 2\left(-47\right)$$
$$16-8\left(-47\right)$$
$$16-\left(-376\right)$$
$$16+376$$
$$392$$
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$2^{3}\times 7^{2}$
