138-(463+189)

To solve the expression \( 138 - (463 + 189) \), first, calculate the sum inside the parentheses:

\[ 463 + 189 = 652 \]

Now, substitute this back into the expression:

\[ 138 - 652 \]

Now, perform the subtraction:

\[ 138 - 652 = -514 \]

Thus, the final answer is:

\[ \boxed{-514} \]