SOLUTION: Hello, I would like to know, what is {{{sqrt( 18 ) + sqrt( 2 )}}} ? Is it {{{3sqrt( 2 )}}} or {{{4sqrt( 2 )}}} ? Or is my answer completely off? I'd like to see the answer with

Algebra ->  Radicals -> SOLUTION: Hello, I would like to know, what is {{{sqrt( 18 ) + sqrt( 2 )}}} ? Is it {{{3sqrt( 2 )}}} or {{{4sqrt( 2 )}}} ? Or is my answer completely off? I'd like to see the answer with       Log On


   

Question 331206: Hello, I would like to know, what is sqrt%28+18+%29+%2B+sqrt%28+2+%29 ?
Is it 3sqrt%28+2+%29 or 4sqrt%28+2+%29 ? Or is my answer completely off? I'd like to see the answer with the radical sign still in it. So, please don't simplify it down to the decimal. I can do that myself.
I'm also new to the formula plotting system, sorry if I get things wrong!
Thanks a bunch!!
-Lucero
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
It is 4sqrt%282%29, they are like terms 3sqrt%282%29+1sqrt%282%29 so just do the math
:
A good check is: put the original problem in your calc, get the decimal value.
Then put you simplified answer into the calc, if the decimal values agree, you're right!