400+(8+300)

To solve this expression, we need to follow the order of operations, which is often remembered using the acronym PEMDAS:

P - Parentheses (simplify expressions inside parentheses first) E - Exponents (perform any exponentiation) MD - Multiplication and Division (from left to right) AS - Addition and Subtraction (from left to right)

In this case, we need to simplify the expression inside the parentheses first:

8 + 300 = 308

Now we can add this result to the 400:

400 + 308 = 708

Therefore, the answer is 708.