Question

find the swuare of 196 by using formula (a-b)=a square - 2ab +b square​

Answer 1

196 = (200-4) a =200 b=4

= a-2ab +b

=200 -2(200*4)+4

= 40000-1600+16

= 38416

Answer 2

Answer:

196=(200-4)a=200 b=4

(200×4)+4

40000-1600+16

=38416