It sqrt's the whole equation.... make sence? I hope
OpenStudy (anonymous):
ok
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
so, let's start with each paranthetical group, focusing on the left one with root(2)
OpenStudy (anonymous):
can you evaluate \[\sqrt{2} - 5\sqrt{2}\]
OpenStudy (anonymous):
got lost...yep
OpenStudy (anonymous):
-4\[-4\sqrt 2\]
OpenStudy (anonymous):
now square it
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
\[-8\sqrt3\]
OpenStudy (anonymous):
thats where I'm lost....how do you ^2 a sqrt?
OpenStudy (anonymous):
ok, so a square root is just this: you have a number, x, that you multiply by itself, x * x, to yield another value, x*x = y, so the square root of y is x.
OpenStudy (anonymous):
\[do you 16*2 then ^2 or do you ^ the 4 and the 2 separate?\]
OpenStudy (anonymous):
square root of 2 is actually a value less than two. if you have multiply \[\sqrt{2} * \sqrt{2}\] you'll get 2
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
so in that case you had, y = x*x, so the square root of y is x, here you could say that y =2, therefore x = \[\sqrt{2}\]
OpenStudy (anonymous):
so you get 16 * 2 then square?
OpenStudy (anonymous):
16 *2 is the result of \[-4\sqrt{?}\] sqaured
OpenStudy (anonymous):
sorry, that ? is a 2
OpenStudy (anonymous):
i'm confused as to why you square it again?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
you've solved the left paranthetical group, so solve the right
OpenStudy (anonymous):
\[d=\sqrt (x2 -x1)^2 +(y2-y1)^2\] right?
OpenStudy (anonymous):
this is the distance equation, yes
OpenStudy (anonymous):
did you solve the problem?
OpenStudy (anonymous):
1024+36864 right?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
sqrt? right?
OpenStudy (anonymous):
so you have 16*2 on the left and what on the right? i get 64 * 3 on the right
OpenStudy (anonymous):
so that is 16*2 + 64*3
OpenStudy (anonymous):
squareroot( 16 *2 + 64*3 ), unless there are other operations missing in the original equation...
OpenStudy (anonymous):
Sorry! I keep gettin stuck with trin to post my comments to you!! I got 1024 + 36864 then sqrt 37288? am I right so far?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
i think the numbers you have are way too big, how did you get 1024?
OpenStudy (anonymous):
I squared the 16*2 and 64*3....?
OpenStudy (anonymous):
Are you still with me? If not then thanx for all your help...if you are then am I right or wher am I going wrong?
OpenStudy (anonymous):
why did you square them?
OpenStudy (anonymous):
you already did, that's how you have 16*2 and not -4*sqrt(2)
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
look at the prob again.....in th () you have to get the sqrt down to be squared...
OpenStudy (anonymous):
If not then how do you ^ 2 a sqrt?
OpenStudy (anonymous):
a sqrt is just a number that if you square that number, you get another number...so if you have \[\sqrt{2}\], if you square that you get 2. if you "^2 a sqrt" those two operations are cancelling eachother out...so you did this when you found that
OpenStudy (anonymous):
\[(-4*\sqrt{2})^2 = 16 * 2\]
OpenStudy (anonymous):
right there you squared a square root
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
oh, ok....
OpenStudy (anonymous):
rt(2) squared is 2
OpenStudy (anonymous):
so how do I do the -8 sqrt 3 ^2?
OpenStudy (anonymous):
the same way as you did with the left, ;)
so what is -8 squared?
OpenStudy (anonymous):
64
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
what is \[\sqrt{3}\] squared?
OpenStudy (anonymous):
3?
OpenStudy (anonymous):
right
OpenStudy (anonymous):
so you have 16*2 + 64*3
OpenStudy (anonymous):
so i sqrt 160?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
you have 32 + 192
OpenStudy (anonymous):
that is the value you square root
OpenStudy (anonymous):
the 32 is negative?
OpenStudy (anonymous):
no.....
OpenStudy (anonymous):
both value are positive, they were calculated from negative values that you then squared, and when you multiply two negative numbers you get a positive
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
So d=14.96?
OpenStudy (anonymous):
right, \[\sqrt{204}\]
OpenStudy (anonymous):
So you are in Georgia IT?
OpenStudy (anonymous):
sorry, that wwas poor adding
OpenStudy (anonymous):
\[\sqrt{224}\]
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (anonymous):
yes, i am
OpenStudy (anonymous):
was this helpful?
OpenStudy (anonymous):
where are you from?
OpenStudy (anonymous):
Great Help!! Thanx more than you'll ever know!! Good ol' Tennessee
OpenStudy (anonymous):
right on, no problem, :)
Still Need Help?
Join the QuestionCove community and study together with friends!