Algebra Den

Multiplication of Two Negative Integers

Method of multipication of two positive integers and two negative intergers is similar.
In such a situation, we are given two negative integers for multipication. We simply multiply the whole numbers and put a positive sign(+) before the product.
In other words,whenever two negative integers are multiplied, we always get a positive integer
Note :- We normally do not write positive sign(+) before a positive integer because a whole number without any sign is understood to be a positive integer. So here also you can ignore writing positive sign(+) before the product

Following examples will help you further in understanding :-
Example 1 = Find the product of two negative integers (-8) and (-3)
Answer = To find the product of two negative integers, we will multiply both the whole numbers i.e (-8) and (-3).
(-8) * (-3) = 24.
As explained above we can also ignore writing positive sign(+) before 24.
Integer 24 or (+24) are both same positive integer.

Example 2 = Find the product of two negative integers (-20) and (-10)
Answer = To find the product of two negative integers, we will multiply both the whole numbers i.e (-20) and (-10).
(-20) * (-10) = (-200).
As explained above we can also ignore writing positive sign(+) before 200.
Integer 200 or (+200) are both same positive integer.