Question

{-2+ ³√216.2)²: [5-(17-3.3²) : (√625-6.4+1)]-2³}²-2²

Answer 1

{-2+ ³√216.2)²: [5-(17-3.3²) : (√625-6.4+1)]-2³}²-2²
{-2+ ³√216.2)²: [5-10 :0]-2³}²-2²
{-2+ ³√216.2)²:-2³}²-2²
{-2+ ³√1728:-8}²-2²
{-2+ 12-8}²-2²
{2}²-2²
4-4
0