Question

PLEASE HELP ASAP I AM TIMED NO GUESSING THANK YOUUU'
22) What is the following sum?

Answer 1

`\sqrt[3]{16x^7}\cdot\sqrt[3]{12x^9}=\sqrt[3]{16\cdot12\cdot x^(16)}=\sqrt[3]{4\cdot4\cdot4\cdot3\cdot x^(15)\cdot x}=\\\\=\sqrt[3]{4^3}\cdot\sqrt[3]{x^(15)}\cdot\sqrt[3]{3x}=\boxed{4x^5\sqrt[3]{3x}}`

Answer D.