The teacher will be very surprised to see your correct solution 😉
x1 = 2
-W(log(18446744073709551616)) + log(64) x2 = --------------------------------------- log(2)
x2 = (-LambertW(log(18446744073709551616)) + log(64))/log(2)
sum
-W(log(18446744073709551616)) + log(64) 2 + --------------------------------------- log(2)
=
-W(log(18446744073709551616)) + log(64) 2 + --------------------------------------- log(2)
product
-W(log(18446744073709551616)) + log(64) 2*--------------------------------------- log(2)
=
2*(-W(log(18446744073709551616)) + log(64)) ------------------------------------------- log(2)
2*(-LambertW(log(18446744073709551616)) + log(64))/log(2)