Determine the quotient when (2z3+5z2−11z−14)(2z^3 + 5z^2 - 11z - 14)(2z3+5z2−11z−14) is divided by (z+2)(z + 2)(z+2).
2z2+z−72z^2 + z - 72z2+z−7
2z2−z−72z^2 - z - 72z2−z−7
2z2+z+72z^2 + z + 72z2+z+7
z2+5z−7z^2 + 5z - 7z2+5z−7