Rewrite as .

Pull terms out from under the radical.

Multiply by .

Rewrite as .

Pull terms out from under the radical.

Multiply by .

Rewrite as .

Factor out of .

Rewrite as .

Add parentheses.

Pull terms out from under the radical.

Multiply by .

Add and .

Subtract from .

Simplify 2( fourth root of 16x)-2 fourth root of 2y+3( fourth root of 81x)-4 fourth root of 32y