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mathsloverBest ResponseYou've already chosen the best response.0
is this the question? : \[\large{\frac{x2}{x^2+3x10}}\] ?
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
Can you factor the denominator?
 one year ago

85295jamesBest ResponseYou've already chosen the best response.1
what do you mean ??
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
Right. So that means \(x^2+3x10=(x+5)(x2)\). That means your rational expression becomes\[\frac{(x2)}{(x+5)(x2)}\]Before we go farther, can you tell me what the excluded values will be?
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
The excluded values are the zeroes of the denominator. So you get \(x=5,2\). Now I'm sure that you can simplify it.
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
You have excluded values when your denominator is 0. Also, I've got to go now. If you have questions, I'll be back on later tonight, so I can answer your questions then.
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
Do you mean \(x^2\)?
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
I'm a bit confused. Are you stuck with the simplification or the excluded values?
 one year ago

85295jamesBest ResponseYou've already chosen the best response.1
dw:1346987271707:dw
 one year ago

85295jamesBest ResponseYou've already chosen the best response.1
i dont think it is (A) now
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
It is not C. Look back at the equation. \[\frac{(x2)}{(x+5)(x2)}\]How can you simplify this?
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
\[\frac{\cancel{(x2)}}{(x+5)\cancel{(x2)}}\]What do you get?
 one year ago

KingGeorgeBest ResponseYou've already chosen the best response.1
no...You should get \[\frac{1}{(x+5)}\]
 one year ago
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