let u = 3x^2-x-2. Then you have
2/u + 5/(u+1) = 7/(u-1)
That gives you
u = -1/6
Now all you have to do is solve
3x^2-x-2 = -1/6
Using change of variable to solve 2/3x^2-x-2 +5/3x^2-x-1=7/3x^2-x-3
2 answers
Combine terms.
The x^2 terms cancel out.
-2x-3 = -x-3
-x = 0
Do you have typos?
The x^2 terms cancel out.
-2x-3 = -x-3
-x = 0
Do you have typos?