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Mathematics 20 Online
OpenStudy (anonymous):

Divide.

OpenStudy (anonymous):

\[\frac{ 3n ^{2}-n }{ n^2-1 } \div \frac{ n ^{2} }{ n+1 }\]

OpenStudy (mertsj):

Can you factor?

OpenStudy (anonymous):

Not sure how

OpenStudy (mertsj):

Factor n out of 3n^2-n

OpenStudy (mertsj):

n^2-1 is the difference of two squares

OpenStudy (anonymous):

(n-1)(n+1) ? I'm just guessing, I suck at factoring, makes my brain well up .-.

OpenStudy (mertsj):

That is good.

OpenStudy (mertsj):

Now factor n out of 3n^2-n

OpenStudy (mertsj):

And you MUST master factoring. Do whatever it takes.

OpenStudy (anonymous):

(n+1)(n-1) >.< and I'll try

OpenStudy (mertsj):

What did you get when you factored n out of 3n^2-n?

OpenStudy (anonymous):

(n+1)(n-2)

OpenStudy (mertsj):

When you multiply (n+1)(n-2) do you get 3n^2-n?

OpenStudy (anonymous):

ooh no.... how would I do check that though, FOIL or something?

OpenStudy (mertsj):

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