Question

What is the simplified form of the following expression? Assume x≥0 and y≥0

update: took too long to get answered so i guessed and failed the quiz. hopefully someone else can get the answer needed, though

Answer 1

$2(\sqrt[4]{16x} ) - 2(\sqrt[4]{2y} ) + 3(\sqrt[4]{81x} ) - 4(\sqrt[4]{32y} )$

$= 2(\sqrt[4]{2^4x} ) - 2(\sqrt[4]{2y} ) + 3(\sqrt[4]{3^4x} ) - 4(\sqrt[4]{2(2)^4y} )$

$= 4(\sqrt[4]{x} ) - 2(\sqrt[4]{2y} ) + 9(\sqrt[4]{x} ) - 8(\sqrt[4]{2y} )$

$= 13(\sqrt[4]{x} ) - 10(\sqrt[4]{2y} )$