Rewrite as .

Factor out of .

Rewrite as .

Move .

Rewrite as .

Add parentheses.

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 .

Simplify 8 square root of 28y^2b+11y square root of 63b