$$5 \times -2-4 \times - { 2 }^{ 2 } +3$$
$9$
$$-10-4\left(-2^{2}\right)+3$$
$$-10-4\left(-4\right)+3$$
$$-10-\left(-16\right)+3$$
$$-10+16+3$$
$$6+3$$
$$9$$
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$3^{2}$
