InterviewSolution
Saved Bookmarks
| 1. |
Factorise completely : a2 + 2ab + b2 – c2 |
|
Answer» a2 + 2ab + b2 – c2 = (a2 + 2ab + b2)- c2 = (a + b)2 - (c)2 = (a + b + c) ( a + b - c) |
|