Add precisely a single point and transform the relationship given below to an identity:
(7| + |)(7| - |) = 7|
assuming you've meant:
(71+1)*(72-1)=71
Replace the last 1 by ״!״
To get 72*70=7!
Which is true: 72=3*4*6 70=2*5*7
The initial representation was quite lousy