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Mathematics 17 Online
OpenStudy (linda):

Hey can you help with this one: express in simplest form: 3/ the square root of 3a^2b. In other words, 3 is the numerator and the denominator is the square root of 3a^2b

OpenStudy (anonymous):

\[\sqrt{3}*a ^{-b}\]

OpenStudy (linda):

can you tell me what you did to get there?

OpenStudy (linda):

I can't figure out how to get there. I thought maybe to multiply top and bottom of fraction by square root of 3a^2b. Does that sound right?

OpenStudy (anonymous):

yeah that sounds correct to me

OpenStudy (linda):

so then I end up with 3*sq rt of 3a^2b on the top and 3a^2b in the denominator. but then what do I do next??

OpenStudy (anonymous):

the 3s will cancel and your left with sqrt of 3a^2b / a^2 b

OpenStudy (linda):

OK i've got you so far. thanks. But then what?

OpenStudy (linda):

I don't know what to do with numbers when they are in the square root.

OpenStudy (anonymous):

it cant be simplified anymore

OpenStudy (linda):

oh really? someone else gave me the answer sq rt 3 * a^-b not sure how they got it. It was inik

OpenStudy (anonymous):

you cant just cancel out the denominator like that because because the numerator is under a sq rt

OpenStudy (linda):

ok so the numerator must stay as is? And so the problem cannot be simplified any further?

OpenStudy (anonymous):

thats what i think.

OpenStudy (linda):

OK thanks!

OpenStudy (anonymous):

glad i could help

OpenStudy (linda):

this math stuff can make a person crazy

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