HELP?
Which of the following is the simplified form of x plus 5 over x squared minus 25 times the fraction x minus 5 over x squared minus 10 x plus 25 ?
1 over the quantity x minus 5 end quantity squared
1 over the quantity x plus 5 end quantity squared
1 over x squared minus 25
1 over x squared plus 25
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OpenStudy (rmrjr22):
x plus 5 = (x+5)
over = /
x squared minus 25 times the fraction x minus 5 over x squared minus 10 x plus 25 x^2 - 25((x-5)/(x^2 - 10x+25)
OpenStudy (anonymous):
huh?
OpenStudy (rmrjr22):
\[(x+5)/x^2 - 25((x-5)/(x^2 - 10x+25))\]
OpenStudy (rmrjr22):
unfactor everything until you get what ever is on the top. In this case ...(x+5)
OpenStudy (rmrjr22):
x^2−25((x−5)= (x+5)(x-5)(x-5)
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OpenStudy (anonymous):
ok...
OpenStudy (rmrjr22):
x^2−10x+25 = (x-5)(x-5)
OpenStudy (rmrjr22):
now just cancel out top from bottom. Any like terms like (x-5) or (x+5)
OpenStudy (anonymous):
OK?
OpenStudy (anonymous):
I got D.
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OpenStudy (rmrjr22):
yes
OpenStudy (anonymous):
That's right?
OpenStudy (rmrjr22):
believe so
OpenStudy (anonymous):
Alright, thanks.
OpenStudy (rmrjr22):
I actually ended up with 1...
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OpenStudy (luigi0210):
Hm.. Kind of hard to see without the equation editor
You sure?
OpenStudy (anonymous):
>.<
OpenStudy (anonymous):
Oh, you might be right then...
OpenStudy (rmrjr22):
Did on pen and paper...
OpenStudy (luigi0210):
@rmrjr22 what was your final answer?
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OpenStudy (rmrjr22):
1...
OpenStudy (anonymous):
Like number 1?
OpenStudy (rmrjr22):
yes...
everything cancels out
OpenStudy (anonymous):
then you are probably right, so A it is.
OpenStudy (luigi0210):
Okay wait show me your equation
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