The teacher will be very surprised to see your correct solution 😉
2 log (x) = log(10*x)
sum
_______________ _______________ 1 \/ 1 + 4*log(10) 1 \/ 1 + 4*log(10) - - ----------------- - + ----------------- 2 2 2 2 e + e
=
_______________ _______________ 1 \/ 1 + 4*log(10) 1 \/ 1 + 4*log(10) - + ----------------- - - ----------------- 2 2 2 2 e + e
product
_______________ _______________ 1 \/ 1 + 4*log(10) 1 \/ 1 + 4*log(10) - - ----------------- - + ----------------- 2 2 2 2 e *e
=
E
E
_______________ 1 \/ 1 + 4*log(10) - - ----------------- 2 2 x1 = e
_______________ 1 \/ 1 + 4*log(10) - + ----------------- 2 2 x2 = e
x2 = exp(1/2 + sqrt(1 + 4*log(10))/2)