Can you explain how to calculate such function, like why use g(12),g(2),g(4),g(6) to represent g(12), also can you give another example and explain? thank you!

By exponentialia ( Pf above Then I (Q) = (x)+(3) ) = n din - n=12 12 f(12) = g(12)+92) 9(4)-g(6) (x^2-1)(x+1) Di2 () = (x4-1) (XS-1) 12 4 2 - = x'-x?+ 1 -x Wrong, $$(x) = ) = 1 = x-1 Corrent X -\ -X41 = 8 in booh By exponentialia ( Pf above Then I (Q) = (x)+(3) ) = n din - n=12 12 f(12) = g(12)+92) 9(4)-g(6) (x^2-1)(x+1) Di2 () = (x4-1) (XS-1) 12 4 2 - = x'-x?+ 1 -x Wrong, $$(x) = ) = 1 = x-1 Corrent X -\ -X41 = 8 in booh