Please could someone advise me on solving this:
If m and n are rational numbers, √m +√n = √(7+√48) calculate to the nearest digit m2 + n2 ?
Thanks
Hello, ACM!
Whenever I see that an expression under a square root contains a square root,
. . I always wonder if that expression is a square.
Inside, we have: . . . . . which happens to be
The problem becomes: .
. . . . . . . . . . . . . . . . . .
Hence: . . or vice versa.
Therefore: .