InterviewSolution
Saved Bookmarks
| 1. |
123xx123+77xx77+2xx123xx77=? |
|
Answer» SOLUTION :`123xx123+77xx77+2xx123xx77` `=(123)^2+(77)^2+2xx123xx77` `=(123+77)^2 [(a+b)^2=a^2+b^2+2ab]` `=(200)^2=40000` |
|