Hey guys, I was away when my Principals 10 class did radicals.. now I have no clue what I'm doing & I have a mid-term next week yay!:confused:

Can someone please help me?

thanks so much :o

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- Apr 1st 2007, 11:14 AMccyndRadicals?
Hey guys, I was away when my Principals 10 class did radicals.. now I have no clue what I'm doing & I have a mid-term next week yay!:confused:

Can someone please help me?

thanks so much :o - Apr 1st 2007, 11:17 AMJhevon
- Apr 1st 2007, 11:20 AMccynd
I have a few haha.

Uhh lets see, here's one.. I just figured how to do the √ thing haha.

its 2√20 - √8 + √18 - 3√45

I got an anwser of -5√5-5√2... buttt I think I got it wrong.

here are my steps :S

2√4 x 5 - √ 4 x 2 + √ 9 x 2 - 3 √ 9 x 5 =

2 x 2 √5 - 2 √2 + 3√2 - 3 x 3 √5=

4√5 - 2√2 + 3√2 - 9√5=

-5√5 - 5√2 - Apr 1st 2007, 11:44 AMJhevon
- Apr 1st 2007, 11:46 AMJhevon
- Apr 1st 2007, 11:49 AMccynd
I really don't know.. there could've been something wrong when I wrote it down.. it tends to happen..

but I was on the right track, right?

I have another question too (if you don't mind)

(exp)3√16 + (exp)3√54 {is it the same, but you just keep the same exponent?... } - Apr 1st 2007, 12:07 PMJhevon