4√8 plus √28 + 4√8 plus √28
To simplify the given expression, we can simplify each square root separately and then combine like terms.
4√8 can be simplified as 4 * 2√2 = 8√2.
√28 can be simplified as √(4 * 7) = √4 * √7 = 2√7.
Therefore, the given expression can be rewritten as 8√2 + 2√7 + 8√2 + 2√7.
Now, combining like terms, we have:
8√2 + 8√2 + 2√7 + 2√7 = (8 + 8)√2 + (2 + 2)√7 = 16√2 + 4√7.
Therefore, the simplified expression is 16√2 + 4√7.