Originally Posted by
Forkmaster This is confusing me. The book's method is basically this...
Problem:
4

(Radical) 7
Multiply by
(Radical) 7

(Radical) 7
with (Radical) meaning the checkmark thing, and the hyphens being a division line.
That multiplication gets you...
4 * (Radical) 7

7
Which the book marks as correct.
That's all well and good, but I'm confused by the next step up...
What would I do on a problem like this?
2 * (Radical) 3

(Radical) 6
I tried that method, and couldn't do it. The book gives no other methods.
Help please...?