(Lindy Walton is responding while Dorothy is unavailable.) Yes, your braille is correct, assuming the opening and closing parentheses which you have brailled also show in the print copy. There is a good explanation of this in the Introduction to Braille Mathematics (lesson manual) on page 38 -- Lesson 3, Section 33d
Thanks so much Linda. You have no idea how long I searched to find the section that you recommended. I have must have missed that somehow in my searches. It is exactly what I wanted to see to make sure I was doing it right. Thanks again!