Originally Posted by

**SportfreundeKeaneKent** Oh and also, I was doing question 4 down that list and I got x = 0.5 which is different than the answer Soroban's answer of 1/e. I was wondering if anyone could check up on this.

I used the quotient rule in this question so that it became this:

ln(e^2 x^2+1)-ln2x=1

2lne^2 x+ 0 - ln2x=1

2x + 0 - ln2x = 1

2x(1-ln1)=1

2x=1

x-1/2 or 0.5

When I plugged x = 0.5 into the equation to check my work, it worked out so I'm really confused about wheter what Soroban did was right or the way I've done it is right.