The expression 103 × 97 is written as (100 + 3) (100 – 3)
Here, a = 100 and b = 3.
Hence, 103 × 97 = (100 + 3) (100 – 3) = 1002 – 32.
Therefore, the given expression can also be written as : (100 + 3) (100 – 3) = 1002 – 32.