NEED HELP QUICK!!!!!!!
Given: X = r + 2, Y = 2r - 9, and Z = r2 + 17r + 30.
Simplify [X · Y - Z] ÷ X.
-r - 24
r - 24
2r2 - 6r - 33
2r2 + 6r + 33
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OpenStudy (thedj4jc):
[R + 2 * 2R - 9 - R^2 + 17R + 30] / R + 2
That's how I'd write it out, right?
OpenStudy (thedj4jc):
@iGreen
OpenStudy (thedj4jc):
@robtobey
OpenStudy (thedj4jc):
@icecreamman
OpenStudy (anonymous):
Ooh this looks fun
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OpenStudy (anonymous):
\[\frac{ (x \times y - z) }{ x }\] this is your problem right (just making sure)
OpenStudy (thedj4jc):
I'm not sure. I'm supposed to simplify the given equation, [X * Y - Z] / X
OpenStudy (thedj4jc):
Yes, pretty much. Sorry, had to write it out to notice it.
OpenStudy (anonymous):
Right, so all you have to do is plug it in, so let me make it look nice for you\[\frac{ (x \times y - z) }{ x } \implies \frac{ [(r+2)(2r-9)-(r^2+17r+30)] }{ r+2 }\]
OpenStudy (anonymous):
Seems reasonable, let me know if you have any doubts, can you simplify now?
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OpenStudy (thedj4jc):
I'm not sure, that's how it'd be written I know. But I'm having trouble understanding how to simplify it.