anonymous
  • anonymous
7 over 5x squared -20x+20 plus 1 over 20x squared - 80
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
lol, the question is not clear >_<
anonymous
  • anonymous
7 over 5x squared minus 20x plus 20 add to 1 over 20x squared minus 80
anonymous
  • anonymous
i agree with sstarica because 7over 5x or 7over5 then an x ?

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anonymous
  • anonymous
\[\frac{7}{5x^2} - 20x + 20 + \frac{1}{20x^2} - 80\]?
anonymous
  • anonymous
______7_____ 5x squared -20x+20 added to 1 over 20x squared - 80
anonymous
  • anonymous
so is sstarica right?
anonymous
  • anonymous
sorry for the confusion Ihavent quited figured out how to work this program yet
anonymous
  • anonymous
\[\frac{7}{5x^2-20x+20} + \frac{1}{20x-80}\]
anonymous
  • anonymous
yes
anonymous
  • anonymous
alright lol :)
anonymous
  • anonymous
how do you get horizontal bars for the fractions with the maths editor
anonymous
  • anonymous
frac{a}{b} <-- ^_^
anonymous
  • anonymous
\[\frac{7}{5(x-4)^2} + \frac{1}{20(x-4)}\]\[\frac{7}{5(x^2-4x+4)} + \frac{1}{20(x-4)}\]
anonymous
  • anonymous
wrong order lol
anonymous
  • anonymous
lol, I noticed
anonymous
  • anonymous
multiply top and bottom of second by x-4
anonymous
  • anonymous
it's actually (x-2)^2 :)
anonymous
  • anonymous
nvm LOL, I wrote the wrong question
anonymous
  • anonymous
yeh something like that , im going to go to sleep soon
anonymous
  • anonymous
no, wait, I wrote the right question >_<
anonymous
  • anonymous
(x-2)^2 ^_^" instead of (x-4)^2
anonymous
  • anonymous
its 1.40 in the morning where I am , I am too generous staying up this late to help ppls lol
anonymous
  • anonymous
lol, go to bed
anonymous
  • anonymous
\[= \frac{7(4)(x-4) + (x-2)(x-2)}{20(x-2)^2(x-4)}\] \[= \frac{28x - 112 +x^2 - 4x -4}{20(x-2)^2(x-4)}\] \[= \frac{x^2 + 24x -116}{20(x-2)^2(x-4)}\] hmm, there's something wrong
anonymous
  • anonymous
I'm not sure
anonymous
  • anonymous
did you understand what I just did?
anonymous
  • anonymous
not really i'm not very smart with algebra
anonymous
  • anonymous
I factored, then put both fractions with the same denominator to have them in one :)
anonymous
  • anonymous
write down the steps on paper, and you'll figure out what I did ^_^
anonymous
  • anonymous
wait a min, there's a mistake in the last 2 steps, hold on dear ^_^
anonymous
  • anonymous
I'm lost because under the 1 in 20x squared minues 80
anonymous
  • anonymous
\[= \frac{28x-112+x2-4x+4}{20(x-2)^2(x-4)}\]<-- for the second line
anonymous
  • anonymous
I factored, I pulled out 20 as a common factor and was left with (x-4) use the distributive law to check ^_^
anonymous
  • anonymous
\[= \frac{x^2+24x-108}{20(x-2)^2(x-4)}\]
anonymous
  • anonymous
sorry about the mess, but are you following now :)?
anonymous
  • anonymous
i think so, thank you so much
anonymous
  • anonymous
np ^_^, but there's still something fishy about it lol, I can't seem to factor the numerator
anonymous
  • anonymous
does the question want you to add only? or simplify?
anonymous
  • anonymous
simplify
anonymous
  • anonymous
hmm
anonymous
  • anonymous
I'm sure of the following steps I just made, but looks it can't be factored
anonymous
  • anonymous
thank you

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