Помогите упр 36(2), 37(2), 38(2), 41(2,4)

36)
$\sqrt[3]{ - 1000} - \frac{1}{4} \sqrt[4]{256} = - 10 - \frac{1}{4} \times 4 = - 10 - 1 = - 11$
37)
$\sqrt[3]{512 \times 216} = \sqrt[3]{ 512} \times \sqrt[3]{216} = 8 \times 6 = 48$
38)
$\sqrt[4]{ {11}^{4} \times {3}^{4} } = \sqrt[4]{ {11}^{4} } \times \sqrt[4]{ {3}^{4} } = 11 \times 3 = 33$
41)
2)
$\sqrt[4]{ {a}^{8} {b}^{12} } = \sqrt[4]{ {a}^{8} } \times \sqrt[4]{ {b}^{12} } = {a}^{2} {b}^{3}$
4)
$\sqrt[6]{ {a}^{12} \times {b}^{18} } = \sqrt[6]{ {a}^{12} } \times \sqrt[6]{ {b}^{18} } = {a}^{2} {b}^{3}$