Question

49x49 by special identity step by step

Answer 1

Answer

The answer is 2401

Step-by-step explanation:

Using (a-b)2 = a 2 + 2ab + b 2 to calculate the value of (49)2

We can write (49)2 as (50-1)2

(50-1)2 = 50 2 - 2×50×1 + (1)2

= 2500 - 100 + 1

= 2401