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Mathematics 9 Online
OpenStudy (anonymous):

2^(5/2)-2^(3/2)

OpenStudy (anonymous):

Do you have any idea how to solve it?

OpenStudy (anonymous):

I dont

OpenStudy (anonymous):

Im completely lost.

OpenStudy (anonymous):

You can do the following: 2* Sqrt[2]+2S*qrt(2)

OpenStudy (anonymous):

i might have an idea ...

OpenStudy (anonymous):

sorry: =4*sqrt(2)+2*sqrt(2) =6*sqrt(2)

OpenStudy (anonymous):

That is the answer

OpenStudy (anonymous):

\[\sqrt{2^{5^{}}}-\sqrt{2^{3}}= 2^{5/2}-2^{3/2}\]

OpenStudy (anonymous):

right?

OpenStudy (anonymous):

...and that = \[2\sqrt{2^{3}}-\sqrt{2^{3}}\]

OpenStudy (anonymous):

....

OpenStudy (anonymous):

The answer is 2^(3/2)

OpenStudy (anonymous):

... and continue

OpenStudy (anonymous):

continue what?

OpenStudy (anonymous):

that equals \[\sqrt{2^{3}}\]

OpenStudy (anonymous):

which equals ...

OpenStudy (anonymous):

=4*sqrt(2)+2*sqrt(2) =6*sqrt(2) if sqrt(2)=2^(1/2), we have that: 6*sqrt(2)=6^(1/1)*(2^(1/2)) =(6*2)^(1+1/2) =12^3/2

OpenStudy (anonymous):

THat is what i got

OpenStudy (anonymous):

how the hell did u get that from the equation we stared with....just asking lol

OpenStudy (anonymous):

\[\sqrt{2^{3}}=2\sqrt{2}\] or \[\sqrt{8}=2\sqrt{2}\] right?

OpenStudy (anonymous):

sqrt(any_number)<=>(any_number)^(1/2)

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

\[x ^{1/2}=\sqrt{x}\]

OpenStudy (anonymous):

sqrt(8)=sqrt(2*4) if 4=2^2 then you can get sqrt(4)=2 so sqrt(8)=2*sqrt(2) You are right Terra B Can you teache me how to write down the sqrt symbol please

OpenStudy (anonymous):

press the equation button below the place you type here. it's to the bottom left

OpenStudy (anonymous):

then a box with symbols pops up

OpenStudy (anonymous):

\[\sqrt{x}+3\]

OpenStudy (anonymous):

yeah

OpenStudy (anonymous):

I got it! Thanks guys. Now it is gonna be more fun besides openstudy. Thanks Im gonna become your fan

OpenStudy (anonymous):

sweet i hope your work goes well

OpenStudy (anonymous):

Thanks, but Im a student yet

OpenStudy (anonymous):

hey he just wants to get ur pants peace out guys;)

OpenStudy (anonymous):

:)

OpenStudy (anonymous):

Ok time to move on. See you guys,

OpenStudy (anonymous):

:]

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