Factor out .

Reorder and .

Add parentheses.

Pull terms out from under the radical.

Reorder and .

Pull terms out from under the radical.

Move .

Multiply by .

Multiply by .

Combine using the product rule for radicals.

Multiply by .

Factor out of .

Rewrite as .

Add parentheses.

Pull terms out from under the radical.

Multiply by .

Simplify 3 square root of 5c^3*(7 square root of 15c^2)