Question

Using formula (a‐b)² =(a²‐2ab+b²)

i . (196)²
ii . (689)²


don't spam:-(​

Answer 1

(a-b)^2=(a^2-2ab+b^2)

i) 196

196 = 200 - 4

Therefore (196) squared = (200 - 4) whole squared.

This is equal to, 200^2 -2*200*4 + 4^2

40000 - 1600 + 16

38400 + 16

38416

ii) 689

689^2 = (700 - 1)^2

= 490000 -2*700*1 + 1

= 490000- 1400 + 1

= 488600+1

= 488601

I hope my answer is helpful for you ✌️☺️

Answer 2

Step-by-step explanation:

hello Mehta Vicky mark me as brainlisenst