Saved Bookmarks
| 1. |
(3+√5)×(3-√5) |
|
Answer» We use (a+b)(a-b)identity then Answer is 4 (3+√5)(3-√5)=(3)^2-(√5)^2=9-5=4As there is a identity (a+b)(a-b)=a^2-b^2 |
|