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OpenStudy (yacoub1993):
Add or subtract as indicated.
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OpenStudy (yacoub1993):
\[\frac{ 5 }{ x-2 }-\frac{ 3 }{ x-2 }\]
OpenStudy (yacoub1993):
@hartnn
hartnn (hartnn):
the denominator is common!
you can directly combine the numerator :)
hartnn (hartnn):
\(\large \dfrac{☺}{♥}+\dfrac{☻}{♥}=\dfrac{☺+☻}{♥ }\)
OpenStudy (yacoub1993):
this is correct right because when we subtract 3 from 5 we get 2 but the denominator has a positive and negative
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hartnn (hartnn):
so the actual question is this ?
\(\large \frac{ 5 }{ x+2 }-\frac{ 3 }{ x-2 }\)
or something else ?
OpenStudy (yacoub1993):
no the question is
hartnn (hartnn):
so that just equals
\(\dfrac{2}{x-2}\)
there will be no x+2
OpenStudy (yacoub1993):
here are the choices they gave me and i got wrong
hartnn (hartnn):
then the question must have a (x+2) in it
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OpenStudy (yacoub1993):
if there is a positive the second choice is right
hartnn (hartnn):
\(\dfrac{5}{x+2}-\dfrac{3}{x-2} = \dfrac{2x-16}{(x+2)(x-2)}\)
\(\dfrac{5}{x-2}-\dfrac{3}{x+2} = \dfrac{2x+16}{(x+2)(x-2)}\)
OpenStudy (yacoub1993):
from were did u get -16
OpenStudy (yacoub1993):
for this question there is no correct answer i guess
hartnn (hartnn):
\(5(x-2)-3(x+2) = 5x-10 -3x-6 = 2x -16\)
the question itself is incorrect(not clear) :P
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OpenStudy (yacoub1993):
i will message my teacher to make it clear....
hartnn (hartnn):
yes.
OpenStudy (yacoub1993):
thnxs
hartnn (hartnn):
welcome ^_^
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