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Mathematics 18 Online
OpenStudy (help!!!!):

Help me simplify this

OpenStudy (help!!!!):

\[\frac{9}{\sqrt[3]{3}}\]

OpenStudy (help!!!!):

can you show me the steps?

OpenStudy (help!!!!):

answer is

OpenStudy (help!!!!):

\[3\sqrt[3]{9}\]

OpenStudy (anonymous):

omg my typing...

OpenStudy (anonymous):

\[\huge = 3^{2-1/3} = 3^{6/3 -1/3}= 3^{5/3} = 3^{1 \frac{ 1 }{ 3 }} = 3\sqrt[3]{3}\]

OpenStudy (help!!!!):

how did 6/3 happen?

OpenStudy (help!!!!):

nvm

OpenStudy (anonymous):

ahhh \[\huge = 3^{1\frac{ 2 }{ 3 }} = 3\sqrt[3]{9}\]

OpenStudy (anonymous):

sorry so much typos

OpenStudy (anonymous):

I typoed at the 5/3 part because 5/3 = 1 and 2/3

OpenStudy (anonymous):

do you get it though?

OpenStudy (help!!!!):

could you explain the last step where you converted into squareroot, I dont get it/remember how to

OpenStudy (anonymous):

at 3 ^(1 and 2/3) ?

OpenStudy (help!!!!):

yup

OpenStudy (anonymous):

Well here's the easier way to look at that part. I just got used to the other way. \[\huge 3^{5/3} = \sqrt[3]{3^{5}} = \sqrt[3]{3^{3}} (\sqrt[3]{3^{2}}) = 3(\sqrt[3]{3^{2}}) =3\sqrt[3]{9} \]

OpenStudy (anonymous):

is it confusing still?

OpenStudy (help!!!!):

the last part is cut off

OpenStudy (anonymous):

it's just equal to \[\large 3(\sqrt[3]{9)}\]

OpenStudy (anonymous):

or do you want to think of it as fractions?

OpenStudy (anonymous):

\[\huge 3^{5/3} = 3^{\frac{ 3 }{ 3}}(3^{\frac{2}{3}}) = 3^{1} (3^{\frac{ 2 }{ 3 }}) \] \[\huge = 3 (\sqrt[3]{3^{2}}) = 3(\sqrt[3]{9})\]

OpenStudy (anonymous):

there, does this last explanation looks better?

OpenStudy (help!!!!):

oh i got it, but the nonfraction way is more comfortable

OpenStudy (help!!!!):

THANK YOU SOO MUCH :DDD

OpenStudy (anonymous):

you're welcomed :D

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