Question

512

= (50 + 1)2 = (50 + 1)(50 + 1)

= (50 x 50) + (50 x 1)+ (1 x 50) + (1 x 1)

= 502

+ 12

+ 2 (50 x 1)

To get 512

or (50 + 1)2

, double of 50 x 1 is to be added to 502+12

Similarly, 452

= (40 + 5)2 = 402

+ 52

+ ------------

732

= (70 + 3)2

= 702 + ---- + ----------

642

= (--- + ---)2 = ----- + ----- + 2 x 60 x 4​

Answer 1

Answer:

yah kaun sa class ka questions hai

Answer 2

Answer:

The answer is given above