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anonymous
 5 years ago
OMG i need help, I'm working on Rational expression: 7 a2/a+3 = a(squared)4/a+3 +5.. anyone?
anonymous
 5 years ago
OMG i need help, I'm working on Rational expression: 7 a2/a+3 = a(squared)4/a+3 +5.. anyone?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0[7(a2/a+3)]=[(a^24)/a+3)+5] right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0is it:\[7  \frac{a2}{a+3} = \frac{a^24}{a+3} + 5\]?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sstarica how you write that symbols

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0using the equation button downleft on your past box :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes that is it! ok i see the equation button

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I did try but I can write the faction

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i know the answer but i have no idea how they got it im so stomped

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use frac{}{} for the fraction :), alright, if that's your question then the answer is the following

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[7+5  \frac{(a2)}{a+3}  \frac{(a^24)}{a+3} = 0\]\[\frac{12(a+3)  a + 2  a^2 + 4}{a+3} = \frac{12a + 36  a + 2  a^2 + 4}{a+3}\]\[= \frac{a^211a+42}{a+3} = \frac{(a^2+11a42)}{a+3}\]\[= \frac{(a+3)(a14)}{a+3} = (a14) \rightarrow a+14\] Correct me if I'm wrong ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait, it's 11 a and not 11 a ^_^" sorry

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0humm the book has an answer of 4 only, I am confused

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so :\[= \frac{a^2 + 11a +42}{a+3}\]\[= \frac{(a^211a42)}{a3} = \frac{(a+3)(a14)}{a+3}\] I just messed up the sign of 11, so in the end when you simplify you'll get a+14, I guess

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yeah, it gives x=4 only

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0x? but we are dealing with a here

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0what i did was mutliply each side by (a+3)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.07(a+3)  a  2 = a^{2}4 + 5(a+3)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok show me please..lol

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0\[\frac{(a2)}{a+3}  \frac{a^24}{a+3} = 57\]\[\frac{a^2a6}{a+3} = 2\]\[\frac{(a^2+a6)}{a+3} = 2\]\[\frac{(a2)(a+3)}{a+3} = 2\]\[(a2) = 2 \rightarrow a +2 = 2\]\[a = 4 \rightarrow a = 4\] ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol in the 2nd line it's supposed to be + 6, but just a small typo, doesn't effect the solution :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so ur first step was to subtract the entire fraction from one side?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, I moved 7 to the other side and got all the a's in one side :) and started solving for a ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh i didnt know you could do that

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0lol, it's like solving for x: 4x 3 = x + 2, solve for x < move the x's in one side and numbers in one side ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and now since both fractions have the same denominator i can simply subtrat the entire top row

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait what happend to the (a+3) how did that cancel?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you simplified, cancel the (a+3) from top and bottom ^_^

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0and you'll be left with only (a2) :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok perfect, i got it, then when you divde at the end the two 1's cancel out and 4/1 = postitive 4.. haha perfect

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0next time don't panic :P and face the problem calmly ^_^ good luck!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0thank you, it just never crossed my mind that i could move the entire fraction, i was so worried about mutliplying every side the the LCD that i got stuck on it for an hour.. thank you!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0my answer: (7*(a+3))(a2)=(a^24)+(5*(a+3) (7a+21)(a2)=(a^24)+(5a+15) 6a+23=a^2+5a+11 a^2a12=0 Factor:(a+3)(a4)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you are most welcome ^_^, worrying = distracts you from concentrating. Look at it as simple as possible then you'll be able to solve it :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0hmm, nancy lam's solution seems simple too :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0nancy ur answer works too i think, its that x would = 3 which would be no solution, but the x=4 would work

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but I don't know write like you see better

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0as long as the denominator isn't zero, from what i remember in class

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.02 solution , and lug it in to see which one work

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i was doing it your way nancy, but somehow, i got messed up with my signs

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0u got rid of the denominator right from the beginning which is what i was trying to do im going to work it over again and see where i messed up

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I working write fraction like sstarica

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you time (a+3) for which one don't have denominator and get rid all denominator from beginning

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Thank you, both of you! now i can sleep!
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