- #1
mbrmbrg
- 496
- 2
I'm going over some math work, and ran across the following:
[tex]\frac{2x^2-5x-1}{x^3-2x^2-x+2}=\frac{A}{x-1}+\frac{B}{x+1}+\frac{C}{x-2}[/tex]
How do you get [tex]x^3-2x-x+2=(x-1)(x+1)(x-2)[/tex]?
[tex]\frac{2x^2-5x-1}{x^3-2x^2-x+2}=\frac{A}{x-1}+\frac{B}{x+1}+\frac{C}{x-2}[/tex]
How do you get [tex]x^3-2x-x+2=(x-1)(x+1)(x-2)[/tex]?