Perform the indicated operations and write your result as a single number. \[ (13-5)^{2}-3 \sqrt{4 \times 2+1} \] 141 55

Step 1 ：Simplify the expression inside the square root: \(4 \times 2 + 1 = 9\)

Step 2 ：Simplify the expression inside the parentheses: \((13-5)^{2} = 64\)

Step 3 ：Substitute the simplified values back into the original expression: \(64 - 3 \sqrt{9}\)

Step 4 ：Simplify the square root: \(\sqrt{9} = 3\)

Step 5 ：Substitute the simplified value back into the expression: \(64 - 3 \times 3 = 55\)

Step 6 ：The result of the given expression is \(\boxed{55}\)