$$2 \times { \left(3-5 \right) }^{ 3 } +(12 \times \sqrt{ 12 } -3.6 \times (- { 2 }^{ 2 } )-12$$
$24\sqrt{3}-13.6\approx 27.969219382$
$$2\left(-2\right)^{3}+12\sqrt{12}-3.6\left(-2^{2}\right)-12$$
$$2\left(-8\right)+12\sqrt{12}-3.6\left(-2^{2}\right)-12$$
$$-16+12\sqrt{12}-3.6\left(-2^{2}\right)-12$$
$$-16+12\times 2\sqrt{3}-3.6\left(-2^{2}\right)-12$$
$$-16+24\sqrt{3}-3.6\left(-2^{2}\right)-12$$
$$-16+24\sqrt{3}-3.6\left(-4\right)-12$$
$$-16+24\sqrt{3}-\left(-14.4\right)-12$$
$$-16+24\sqrt{3}+14.4-12$$
$$-1.6+24\sqrt{3}-12$$
$$-13.6+24\sqrt{3}$$
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$24 \sqrt{3} - 13.6 = 27.969219382$
