posted by Trisan
In this, like the first one, just gather your similar terms together and write what's left.
could you please do the problem and show your work. thanks
The problem as you have expressed it is:
1/u^2 - 2u -1/u^2 - 4
= (1/u^2 -1/u^2) - 2u - 4
= -2u -4
I suspect that maybe there are brackets missng, maybe
1/(u^2-2u) -1/(u^2-4) ?
or maybe not, or maybe different, like
1/u^2 - (2u-1)/(u^2-4) ?
but I can't tell.