#### Answer

$4\sqrt[3]{x} + 8\sqrt{7}$

#### Work Step by Step

Regroup the terms to obtain:
$=(5\sqrt[3]{x}-\sqrt[3]{x})+(6\sqrt{7}+2\sqrt{7})$
RECALL:
The distributive property states that for any real numbers a, b, and c:
(1) $ac + bc = (a+b)c$
(2) $ac - bc = (a-b)c$
Use the rules above to combine like terms:
$=(5-1)\sqrt[3]{x} + (6+2)\sqrt{7}
\\=4\sqrt[3]{x} + 8\sqrt{7}$