Question

What will be the sign of the product,if we multiply 90 negative integers and 9 positive integers.

Answer 1

When we multiply 90 negative numbers and 9 positive numbers, the sign of the product will be positive

Answer 2

The product of -90 integers x 9 integers = - 810 integers. So the answer is positive integer. Because the negative integers on multiplication become positive so the end result will also be positive.

Negative x negative = positive in mathematical multiplication which is known by all. On applying such rule, you are sure to get positive value in the end result of multiplication.