Question

what will be the sign of the product if we multiply together 20 negative integers and 5 positive integers ​

Answer 1

The sign of the given product is positive ( + ).

• Firstly, multiplying negative sign integers even number of times results in a positive signed integer.
• ∵ ( - ) × ( - ) = ( + )
• Number of times negative sign integers are multiplied = 20 i.e, 20 is even.
• Hence, their product is positive signed ( + ) ------- A
• Secondly, multiplying positive sign integers any number of times always results in positive signed integer.
• ∵ ( + ) × ( + ) = ( + )
• Hence multiplying 5 positive integers result a positive integer ( + ) ------ B.

From A and B, multiplying both integers of sign ( + ) results, a positive signed integer (+).

Answer 2

Step-by-step explanation:

20 negative integers and 5 positive and integers