Saved Bookmarks
| 1. |
Subtract:4x by x2 - 1 - x + 1 by x - 1. |
|
Answer» \(\frac{4x}{x^2-1}-\frac{x+1}{x-1}\) \(=\frac{4x-(x+1)^2}{x^2-1}\) \(=\frac{4x-(x^2+2x+1)}{x^2-1}\) \(=\frac{-(x^2+2x+1-4x)}{x^2-1}\) \(=-\frac{x^2-2x+1}{x^2-1}\) \(=-\frac{(x-1)^2}{x^2-1}\) \(=\frac{(x-1)^2}{1-x^2}\) |
|