Question

Anyone can solve this......




Question 1 :- 102×98=



Option 1- 100² - 2²
Option 2- 100² + 2²
Option 3- 100 - 2
Option 4- 100 + 2


This question came in Class 10.​

Answer 1

Ok, so let’s first understand that this is a polynomial question.

102 can be expressed as (100 +2)
Also, 98 can be expressed as (100 -2)

Thus, 102 X 98 can be expressed as (100 + 2) (100 - 2). Using the identity (a+b) (a - b), we know that this results in a^2 - b^2. (Difference of Squares).

So, the answer would be 100^2 - 2^2.

Answer - Option 1

Answer 2

Answer:

102×98=9996

100^2-2^2=9996

there fore option 1 is correct