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Mathematics 7 Online
OpenStudy (timaashorty):

Thanks for the help Bah, Shamil & Evan !

OpenStudy (timaashorty):

\[\frac{ \sqrt{2 + \sqrt{5}} }{ \sqrt{2- \sqrt{5}} }\]

OpenStudy (timaashorty):

It;s written almost like that. ^

OpenStudy (shamil98):

wait so the √5 is inside another √ symbol?

OpenStudy (timaashorty):

√2+ √5 / √2- √5 Yes it's just like that

OpenStudy (timaashorty):

Not it's not in another simple it's just in one √.

OpenStudy (shamil98):

would it not be negative one then? √2/√2 = 1 √5/-√5 = -1

OpenStudy (timaashorty):

nope, this is how it there's no 1. This how it looks like exactly

OpenStudy (shamil98):

Oh. hm.

OpenStudy (timaashorty):

Do you know ? I'm timed ;c and still need 3 more to do ;/

OpenStudy (shamil98):

Are there answer choices? You would multiply by the conjugate in this case.

OpenStudy (bahrom7893):

\[\frac{\sqrt2+\sqrt5}{\sqrt2-\sqrt5}\] right? Answers are for the weak! I got this

OpenStudy (timaashorty):

There's no answer choices, it says I have to check my work. It's a workpad problem.

OpenStudy (bahrom7893):

multiply top and bottom by \[\sqrt2+\sqrt5\]

OpenStudy (anonymous):

Wouldn't it be 0?

OpenStudy (shamil98):

yeah the conjugate.

OpenStudy (anonymous):

Divided it comes out to 1-1

OpenStudy (timaashorty):

Can you show the work ? while I do another one ? I checked alpha and it gave me 'complex infinity.

OpenStudy (bahrom7893):

Guys stop confusing everyone. This turns into: \[\frac{(\sqrt2+\sqrt5)^2}{(\sqrt2-\sqrt5)(\sqrt2+\sqrt5)}\]

OpenStudy (bahrom7893):

\[=\frac{2+2*\sqrt2*\sqrt5+5}{2-5}\]

OpenStudy (bahrom7893):

\[=\frac{2+2\sqrt{10}+5}{-3}\]

OpenStudy (bahrom7893):

\[=\frac{-7-2\sqrt{10}}{3}\]

OpenStudy (timaashorty):

Wait that's the final answer ?

OpenStudy (bahrom7893):

yes

OpenStudy (timaashorty):

Yeee thankk you !

OpenStudy (timaashorty):

Can you help me with one more ?

OpenStudy (timaashorty):

Bah get your butt back here !

OpenStudy (bahrom7893):

Bah is lazy.

OpenStudy (timaashorty):

quit being lazy. you did it in seconds :P it's easy for you. Please

OpenStudy (bahrom7893):

just post it..

OpenStudy (timaashorty):

Write this in simplest form

OpenStudy (timaashorty):

Do i have to glue you in here or some ?

OpenStudy (bahrom7893):

that wont work

OpenStudy (timaashorty):

Stapler ?

OpenStudy (bahrom7893):

\[a^2/4\]

OpenStudy (timaashorty):

Show me how you got it. Pleaseee (:

OpenStudy (bahrom7893):

Step one: Read the question Step two: Think Step three: Think a bit more Step four: Make sure the answer is right Step five: Type the answer.

OpenStudy (timaashorty):

Bahrom. -.- I said pleaseee. =c

OpenStudy (bahrom7893):

\[(8a^{-3})^{-\frac{2}{3}}=\frac{1}{(8a^{-3})^{\frac{2}{3}}}=\frac{1}{(2a^{-1})^2}=\frac{1}{4a^{-2}}=\frac{a^2}{4}\]

OpenStudy (timaashorty):

Yay! One more.

OpenStudy (timaashorty):

@bahrom7893

OpenStudy (timaashorty):

I just wanted to irratitate you, I need no more help ;p Lol Thank you Awesome Bahh [:

OpenStudy (bahrom7893):

i am very irratitated... -.-

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