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Mathematics 14 Online
OpenStudy (anonymous):

need help

OpenStudy (ahsome):

Whats the problem?

OpenStudy (anonymous):

with what?

OpenStudy (anonymous):

alright let me type it

OpenStudy (anonymous):

\[\frac{ 7 }{ \sqrt{2} +\sqrt{3} }\]

OpenStudy (anonymous):

simplify

OpenStudy (ahsome):

Do you know how to remove the square root symbol?

OpenStudy (anonymous):

nope

OpenStudy (ahsome):

Hmm... Haven't you been taught it yet?

OpenStudy (anonymous):

well if we have i dont remember

OpenStudy (ahsome):

I can tell you, but it might be confusing

OpenStudy (ahsome):

Ok, you know that \(\sqrt{9}\) is equal to a number that when it multiplies by itself, becomes 9? Example: \(\sqrt{9}=3\) \(3\times3=9\) \(\sqrt{25}=3\) \(5\times5=25\) Does that make sense?

OpenStudy (anonymous):

ya

OpenStudy (anonymous):

\[\frac{ 7 }{ \sqrt{2} +\sqrt{3} }\times \frac{ \sqrt{2} -\sqrt{3} }{ \sqrt{2} -\sqrt{3} }\] is a start

OpenStudy (anonymous):

now i remember doing this

OpenStudy (ahsome):

Yahoo :)

OpenStudy (anonymous):

the denominator is just \(2-3=-1\) and the numerator is whatever you get

OpenStudy (anonymous):

but wut is the square root of 3

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