Mathematics
8 Online
OpenStudy (anonymous):
Solve
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OpenStudy (anonymous):
\[\frac{ x }{ x-16 }\]
OpenStudy (adamaero):
break it up
OpenStudy (anonymous):
How..multiplying the whole thing by the denominator?
OpenStudy (adamaero):
in a way...what about multiplying by opposite
OpenStudy (anonymous):
The reciprocal?
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OpenStudy (adamaero):
\[\frac{ x }{ x-16 }\frac{ x+16 }{ x+16 }\]
OpenStudy (adamaero):
is that what's called the
opposite reciprocal? I don't remember...
OpenStudy (anonymous):
\[\frac{x ^{2}+16x}{ x^{2}-256 }\]
OpenStudy (anonymous):
@adamaero Is this correct? and then where do I go from here?
OpenStudy (adamaero):
22^2 = 484
18^2 = 324
15^2 = 225
16^2 =
=)
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OpenStudy (adamaero):
x^2 + 16x
---------
( )( )
OpenStudy (adamaero):
But, in place of the post before that, I should've just looked to the numerator for a hint (& not guess factors for 256).
OpenStudy (anonymous):
So now hat you know the factors we eliminate or?
OpenStudy (adamaero):
What do you think? Show me; don't be afraid to fail.
OpenStudy (anonymous):
Well I'm not sure if it would be \[\frac{ x^{2} +16 }{ (x+16)(x+16)}\]
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OpenStudy (anonymous):
or \[\frac{ (x+4)(x+4) }{ (x+16)(x+16) }\]
OpenStudy (anonymous):
What is your actual question?
OpenStudy (adamaero):
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