Question

plz give fast answer​

Answer 1

(a-b)2= a2+ b2+2ab

(a-b)2= A2+b2-2ab

Answer 2

Since a is the predecessor of b,

i.e. b > a

∴ a – b = – 1

and, b – a = 1

Please mark the BRAINLIEST.

CHEERS!