InterviewSolution
Saved Bookmarks
| 1. |
Factorise: 9a2b2 – 25 |
|
Answer» 9a2b2 – 25 can be written as (3ab)2 – (5)2 By using the formula a2 – b2 = (a+b) (a-b) Now solving for the above equation (3ab)2 – (5)2 = (3ab+5) (3ab-5) |
|