Q. What will be the result of 1397 x 1397?
✅ Correct Answer: (A)
1951609
Explanation: Given 1397 x 1397
We can also write it as (1397)^2
Or, (1400 - 3)^2
On expanding we get,
= (1400)^2 (3)^2 - (2 x 1400 x 3)
= 1960000 9 - 8400
= 1960009 - 8400
= 1951609
Explanation by: Ravi Chauhan
Given 1397 x 1397
We can also write it as (1397)^2
Or, (1400 - 3)^2
On expanding we get,
= (1400)^2 (3)^2 - (2 x 1400 x 3)
= 1960000 9 - 8400
= 1960009 - 8400
= 1951609
We can also write it as (1397)^2
Or, (1400 - 3)^2
On expanding we get,
= (1400)^2 (3)^2 - (2 x 1400 x 3)
= 1960000 9 - 8400
= 1960009 - 8400
= 1951609