Saved Bookmarks
| 1. |
5 Factorise :(0) x3- 21x+20 |
|
Answer» x^3 - 2x^2 - x + 2= x^2 (x - 2) - 1(x - 2)= (x^2 - 1)(x - 2)= (x-1)(x+1)(x-2) |
|