please help!!!!!!!!!! attachment below :)
thank you
Explain, in complete sentences, how you would multiply the following expression:
Write the simplified answer in radical form
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OpenStudy (anonymous):
OpenStudy (anonymous):
sorry i can't help you with this one so sorrrry
jimthompson5910 (jim_thompson5910):
first convert to rational exponent form
jimthompson5910 (jim_thompson5910):
do you know how to do that?
OpenStudy (anonymous):
NO
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OpenStudy (anonymous):
(a)^m (a)^n=a^(m+n)
jimthompson5910 (jim_thompson5910):
In general, \[\Large \sqrt[n]{x^m} = x^{m/n}\]
jimthompson5910 (jim_thompson5910):
so
\[\Large \sqrt[12]{x^5} = x^{5/12}\]
OpenStudy (anonymous):
oh, wow thank you..
jimthompson5910 (jim_thompson5910):
you use this idea to convert each expression to have rational exponents, then you use the rule ktnguyen1 wrote out
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OpenStudy (anonymous):
that doesn't help me, sorry...
jimthompson5910 (jim_thompson5910):
how would you convert \[\Large \sqrt[6]{x}\] to rational exponent form?
OpenStudy (anonymous):
one sec
jimthompson5910 (jim_thompson5910):
ok
OpenStudy (anonymous):
6x?
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jimthompson5910 (jim_thompson5910):
no
jimthompson5910 (jim_thompson5910):
\[\Large \sqrt[6]{x} = \sqrt[6]{x^1}\]
jimthompson5910 (jim_thompson5910):
now use the rule \[\Large \sqrt[n]{x^m} = x^{m/n}\]
OpenStudy (anonymous):
the only example i can think of right now is:
3√ 64 (assuming you mean the cube root of 64) is equal to (64)^(1/3)
jimthompson5910 (jim_thompson5910):
so using this example, we can say \[\Large \sqrt[6]{x} = x^{1/6}\]
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OpenStudy (anonymous):
oh... I understand that now!!!!!!!! :))))
jimthompson5910 (jim_thompson5910):
so
\[\Large \sqrt[12]{x^5} \cdot \sqrt[6]{x} \]
is the same as
\[\Large x^{5/12} \cdot x^{1/6} \]
jimthompson5910 (jim_thompson5910):
now multiply those two expressions
jimthompson5910 (jim_thompson5910):
\[\Large x^{5/12} \cdot x^{1/6} = ?\]
OpenStudy (anonymous):
one sec:)
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OpenStudy (anonymous):
ps thank you for your time
jimthompson5910 (jim_thompson5910):
yw
OpenStudy (anonymous):
5/72
OpenStudy (anonymous):
is that right?
jimthompson5910 (jim_thompson5910):
you add the exponents, not multiply them
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OpenStudy (anonymous):
what???? are you serious??
jimthompson5910 (jim_thompson5910):
yes
OpenStudy (anonymous):
oh my god i suck at math.
jimthompson5910 (jim_thompson5910):
no you don't
OpenStudy (anonymous):
could've sworn it was multiplying
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jimthompson5910 (jim_thompson5910):
it's just kinda counter-intuitive to add the exponents when you multiply the two expressions, that's all
OpenStudy (anonymous):
6/18
jimthompson5910 (jim_thompson5910):
5/12 + 1/6
5/12 + 2/12
7/12
jimthompson5910 (jim_thompson5910):
remember the denominators must be the same (and they don't change when you add)
OpenStudy (anonymous):
it is counterintuitive.....
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jimthompson5910 (jim_thompson5910):
definitely
OpenStudy (anonymous):
give me just one sec! brb
jimthompson5910 (jim_thompson5910):
ok
OpenStudy (anonymous):
back
OpenStudy (anonymous):
how can you make sure the denominators are the SAme/
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OpenStudy (anonymous):
same?*
jimthompson5910 (jim_thompson5910):
to go from 1/6 to 2/12, you multiply top and bottom by 2
OpenStudy (anonymous):
just by adding the problem, it'll automatically be the same denominator?
OpenStudy (anonymous):
oh, okay
jimthompson5910 (jim_thompson5910):
i want to make all the denominators the same, since the LCM of 6 and 12 is 12, the common denominator is 12
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OpenStudy (anonymous):
gotcha :)
OpenStudy (anonymous):
youre good at this
jimthompson5910 (jim_thompson5910):
thanks
OpenStudy (anonymous):
thank you for your undivided attention...seriously..
jimthompson5910 (jim_thompson5910):
you're welcome
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OpenStudy (anonymous):
youre lucky math is your strongest
OpenStudy (anonymous):
English is mine
jimthompson5910 (jim_thompson5910):
I've just had a lot of practice
OpenStudy (anonymous):
Do you really enjoy this?
jimthompson5910 (jim_thompson5910):
give it more time and you'll get better
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jimthompson5910 (jim_thompson5910):
yes
OpenStudy (anonymous):
Why, if I may ask?
jimthompson5910 (jim_thompson5910):
hmm idk why, i just do
OpenStudy (anonymous):
It just clicks?
jimthompson5910 (jim_thompson5910):
yeah i guess so
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OpenStudy (anonymous):
So does English, for me
jimthompson5910 (jim_thompson5910):
i guess i could ask the same about you and english
jimthompson5910 (jim_thompson5910):
i gotcha
OpenStudy (anonymous):
I enjoy reading. The answer doesn't have to be one specific thing. I can easily see myself apply English work to my everyday life.
jimthompson5910 (jim_thompson5910):
i can see that happening too, there are a lot of places where english could be applied
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OpenStudy (anonymous):
Such as right now hahaha
OpenStudy (anonymous):
It's funny though, English isn't my native language
jimthompson5910 (jim_thompson5910):
no? i guess being on the outside looking in gives you an advantage in many ways
jimthompson5910 (jim_thompson5910):
i know i didn't learn the semantics and syntax of language until I learned spanish (forgot most of it though lol)
OpenStudy (anonymous):
I suppose it does. I suppose having to drill the language the year you came into the country has a large part of it as well ;)
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jimthompson5910 (jim_thompson5910):
yeah definitely, more than part of it...gotta know it to survive
OpenStudy (anonymous):
you're great for being so kind
OpenStudy (anonymous):
Russian's my initial language
jimthompson5910 (jim_thompson5910):
oh that's very cool, do you use it a lot?
OpenStudy (anonymous):
Not at all unfortunately. I was fluent, came to the US when I was four, and had forgotten the entire language due to me not being surrounded by Russian speaking beings.
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jimthompson5910 (jim_thompson5910):
oh so you've learned english at a young age then (probably the best time to learn), i gotcha
jimthompson5910 (jim_thompson5910):
but who knows, you might use it again someday
OpenStudy (anonymous):
It's hardly noticeable, though, that English isn't my native language, that is. But sometimes I'll catch myself pronouncing words a tad but differently from the ones around me.
OpenStudy (anonymous):
Exactly :)
OpenStudy (anonymous):
No one else really realizes it; it's mostly something I catch onto every now and again.
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jimthompson5910 (jim_thompson5910):
that happens to me all the time too, but I usually do that so I can spell them correctly
jimthompson5910 (jim_thompson5910):
besides, no one sounds the same no matter where you go, so you're fine