The teacher will be very surprised to see your correct solution 😉
log(x) + log(x - 3) = 1
sum
_________ 3 \/ 9 + 4*E - + ----------- 2 2
=
_________ 3 \/ 9 + 4*E - + ----------- 2 2
product
_________ 3 \/ 9 + 4*E - + ----------- 2 2
=
_________ 3 \/ 9 + 4*E - + ----------- 2 2
3/2 + sqrt(9 + 4*E)/2
_________ 3 \/ 9 + 4*E x1 = - + ----------- 2 2
x1 = 3/2 + sqrt(9 + 4*E)/2