it is c) e) and f)
imgur: the simple image sharer
I am having a tough time simplifying radicals after I multiply... Any help would be great, I already know the answer; I need to understand though, my textbook is not clear enough for me.
In the picture, you will see I wrote the answer down, but I couldn't finish my work because I did not know how.
It is very difficult to read what you have written. Is what looks like supposed to be ?
If so then the problem is to write in the simplest form. The easiest way to do this, especially if you have "a tough time simplifying radicals after I multiply" is to simplify the radicals before you multiply. Here, recognise that 48= 2(24)= 2(2)(12)= 2(2)(2)(6)= 2(2)(2)(2)(2)(3) which is so that . So
In (e), is that ? 3 divides into 7 twice with remainder 1 so so . 54= (27)(2) and so and . Of course, while 6= 2(3) does not have any "cubes" so . So .
I'll post it here, though it also applies to #7. As HallsofIvy pointed out there is a problem with your notation. For example in f), what is under the radical in the first term. It looks like
or
or something else? Could you please insert some parenthesis in there?
-Dan
Check out the LaTeX forum.
-Dan