The expression "4!(6-4)!" involves factorials, which are mathematical functions that multiply a number by all positive integers less than it. Here, "4!" means 4 factorial, calculated as 4 × 3 × 2 × 1, resulting in 24. The term "(6-4)!" simplifies to "2!", which equals 2 × 1, giving a value of 2. To evaluate "4!(6-4)!", we first compute the factorials. We have 4! = 24 and (6-4)! = 2!, so we multiply these results: 24 × 2 = 48. Thus, the final value of the expression "4!(6-4)!" is 48.