Simplify the value $( - 3) \times ( - 8) \times ( - 5) \times ( - 4)$ .

Hint: To solve this problem we need to know the basic multiplication.

Complete step-by-step answer:
$ \Rightarrow ( - 3) \times ( - 8) \times ( - 5) \times ( - 4)$
Let us take -1 common from all terms then we get
$ \Rightarrow ( - 1) \times ( - 1) \times ( - 1) \times ( - 1)3 \times 8 \times 5 \times 4$
$ \Rightarrow 1 \times 1 \times 3 \times 8 \times 5 \times 4$
$ \Rightarrow 1 \times 24 \times 5 \times 4$
$ \Rightarrow 24 \times 20$
$ \Rightarrow 480$
There the value of $( - 3) \times ( - 8) \times ( - 5) \times ( - 4)$ = 480 .

Note: This problem is a basic multiplication. Here we sometimes skip the sign which will change the value of the number. Make a note that even sign matters, because the sign of number changes the number to greatest number or least number.