73.3-4.46 = (calculated and checked)
68.84, just a few more times!
Calculation: 2 (3 + 1) (3 ^ 2 + 1) (3 ^ 4 + 1). (3 ^ 16 + 1) + 1
2(3+1)(3^2+1)(3^4+1).(3^16+1)+1
=(3-1)(3+1)(3^2+1)(3^4+1).(3^16+1)+1
=(3^2-1)(3^2+1)(3^4+1).(3^16+1)+1
=(3^4-1)(3^4+1).(3^16+1)+1
Using the square difference repeatedly
=3^32-1+1
=3^32
(x + 1.7) # 3 = 1.4?
If it is multiplied by 3, the calculation method is
X=1.4/3-1.7
X=-1.23