Just looking at the last term:
The trick was to factorise -1 out of the brackets.
If the first term's denominator has (x+2b) instead of (x+2) (is it a typo?), it would have been such a nice fraction...
It's on the tip of my tongue and I can't remember a trick I remember learning to solve these.
For some reason i feel like there was a trick where you switch the signs and cross multiplied or something like that to get the denominators the same...but i cant remember
or do i just have to do it the long way and multiply a million times
Thanks for stickin with me.
Been a couple years since I have done all this and I have to pass a test to get into calculus!
Hmm one more thing
Would it be wrong to just go
all over the LCD, this comes out to 9b perfectly, but I have a feeling this is an isolated case where this works.