Well, I was a lousy ass during the lessons so I ended up quite rundown by a truck when I checked out the questions.. private lessons turned out to help a great deal, but i'm stuck with this one question that i really can't move past it (i skipped it for the time being but would like getting it solved for once :P)

Solve, for real values of x, the following equation:

Trying to open it up using the sinh x and cosh x rules got me a little bit lost in it

and

Solution to that one would be awesome :)

One more question my brain cells just won't go past is this one:

Solve, for real values of x, the following equation:

The powers just confuse me, trying to use the identities led me to

(...messing a bit around with it...)

And from then onwards, my brain shuts down. I can't get past that =/