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OpenStudy (highschoolmom2010):
What are the points of discontinuity? Are they all removable?
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OpenStudy (highschoolmom2010):
\[\frac{ \left( x-5 \right) }{x^2-6x+5}\]
OpenStudy (highschoolmom2010):
@ganeshie8
OpenStudy (anonymous):
set the denominator equal to zero and solve for \(x\)
ganeshie8 (ganeshie8):
discontinuity occurs when the given rational expression becomes undefined
rational expression becomes undefined when the denominator becomes 0
ganeshie8 (ganeshie8):
simply set the denominator equal to 0 and solve x for discontinuities
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ganeshie8 (ganeshie8):
\[\large x^2 - 6x + 5 = 0\]
see if you can solve \(\large x\)
OpenStudy (highschoolmom2010):
i have gotten to
\[x^2-6x+5=0\]
\[x^2-6x+5-5=0-5\]
\[x^2-6x=5\]
now i am confused on where to go next with this
ganeshie8 (ganeshie8):
quadratics wont work like that, try to factor it instead
ganeshie8 (ganeshie8):
remember factoring ?
OpenStudy (highschoolmom2010):
ah ok
(x+6 )(x-1)
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ganeshie8 (ganeshie8):
\[\large x^2 - 6x +5 = 0\]
\[\large (x-5)(x-1) = 0\]
OpenStudy (highschoolmom2010):
wait i thought |dw:1421944865308:dw|
ganeshie8 (ganeshie8):
its the opposite actually... find two number such that they :
1) add up to -6
2) multiply to 5
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