$(-3)^{5} \times 10^{4} \div 3^{4} = $

$\frac{3\sqrt{3}}{\sqrt{5}} \div \frac{\sqrt{32}}{\sqrt{2}} = $

$\sqrt{75} + \sqrt{50} - (\sqrt{27} - \sqrt{32}) = $

$\frac{-12}{\sqrt{3}} = $

$x^{-3} \times x^{-6} \times x^{12} = $