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Mathematics 7 Online
OpenStudy (anonymous):

(x^2-3x)/(x^2-9)

OpenStudy (kainui):

Nice name. So do you know how to factor the difference of two squares?

OpenStudy (kainui):

That, combined with factoring an x out of the numerator, you should see something nice pop out at you...

OpenStudy (anonymous):

I got 3x/9 as the answer. It seems this is incorrect

OpenStudy (kainui):

Nope. You'll have to factor the top and bottom so that each has a binomial in common that you can divide out.

OpenStudy (anonymous):

Pretty straightforward. Factor, they simplify.\[\frac{x^2-3x}{x^2-9}=\frac{x(x+3)}{(x-3)(x+3)}=\frac{x}{x-3}\]Do math every day.

OpenStudy (anonymous):

I see , very concise. Use the force wisely my friend

OpenStudy (kainui):

That's no fun unless you're forced to work for it.

OpenStudy (anonymous):

Actually Animal Ain is wrong haha the bottom is x+3

OpenStudy (anonymous):

Yep. Hate it when that happens.

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