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Mathematics 19 Online
OpenStudy (anonymous):

(8m^3n^2)/(4mn^3)

OpenStudy (anonymous):

simplyfy assume that no vaiable equals 0

OpenStudy (radar):

Refer to your rules for exponents 2m^2n^-1 or 2m^2/n

OpenStudy (radar):

\[2m ^{2}n ^{-1}\] or (sometimes preferred)\[2m ^{2}/n\]

OpenStudy (anonymous):

i dont understand. my algebra 1 class which was the basics of this i didnt get to take because the teacher was lazy then this year we just went back to review it and i didnt understand a bit of it

OpenStudy (anonymous):

\[\frac{8m^3n^2}{4mn^3} = \frac{8*m*m*m*n*n}{4*m*n*n*n} = \frac{8}{4}*\frac{m*m*m}{m}*\frac{n*n}{n*n*n}\]

OpenStudy (anonymous):

now just cancel stuff.

OpenStudy (radar):

Rules for multiplying terms with exponents are pretty few and simple. First the base has to be the same such as x or y etc. if you are multiplying like \[x ^{3}\times x ^{2}=x ^{5} \]

OpenStudy (radar):

If dividing subtract

OpenStudy (anonymous):

You can also make this a bit less tedious by using: \[\frac{8m^3n^2}{4mn^3} = \frac{8*m*m^2*n^2}{4*m*n*n^2}\]

OpenStudy (anonymous):

Then cancel stuff that has the same power. But eventually you'll realize that you're just subtracting the exponents on the bottom from the exponents on the top (or adding negative exponents).

OpenStudy (radar):

Polpak, how do you get that line in your fractions (the long line??

OpenStudy (anonymous):

good question i wish i knew it would make typing the equations out alot easier

OpenStudy (anonymous):

Well I don't use the equation editor cause it causes issues so I type them all by hand. The syntax they use here is called latex, and for doing fractions you just have \frac{numerator}{denominator}

OpenStudy (anonymous):

im new to the whole program so i just make it look as close as i can

OpenStudy (radar):

Let me try it: \frac{8345}{5432}

OpenStudy (radar):

it didn't work for me!

OpenStudy (anonymous):

i worked the problem out and i got the answer as 8m^2n^-2

OpenStudy (anonymous):

no wait negitive 1 not ^-2

OpenStudy (anonymous):

No you have to put it in the equation format. All equations must be surrounded by \ [ \] (but no spaces betwen the \ and the [)

OpenStudy (anonymous):

\[8m^2n^-1\]

OpenStudy (anonymous):

It should be \[\frac{2m^2}{n}\]

OpenStudy (anonymous):

So you have it right for m and n, just forgot to divide the leading coefficients.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Also when typing negative exponents in latex you have to use n^{-1}

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

Did you figure it out radar?

OpenStudy (radar):

Not yet don't want to slow down themudbug93 while he is on a roll

OpenStudy (anonymous):

Try (with no spaces): \ [ \frac{1234}{4321}\]

OpenStudy (anonymous):

haha radar i got it sorta figured out. i gotta go do some other things and ill be back on later tonight

OpenStudy (radar):

\[\frac{1234}{4321}\]

OpenStudy (anonymous):

You got it npw =)

OpenStudy (radar):

Thanks a lot.

OpenStudy (anonymous):

For more info see: http://en.wikibooks.org/wiki/LaTeX/Mathematics

OpenStudy (radar):

I fanned you but did not see it increment!

OpenStudy (anonymous):

Sometimes it takes a second to refresh. It looks like it worked though ;)

OpenStudy (radar):

\[\frac{8m^{3}n^{2}}{4mn^{3}}\] Eureka!!!

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