anonymous
  • anonymous
Solve for x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
\[0.041=\frac{ x^2 }{ 0.1-x }\]
Jhannybean
  • Jhannybean
cross multiply first.
anonymous
  • anonymous
Quadratic: x^2+0.041x-0.0041=0

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anonymous
  • anonymous
^this quadratic is annoying
Jhannybean
  • Jhannybean
oh my... use quadratic formula?
Jhannybean
  • Jhannybean
\[\large \frac{-(0.041) \pm \sqrt{(0.041)^2-4(1)(-0.0041)}}{2(1)}\]
Jhannybean
  • Jhannybean
That might work.
anonymous
  • anonymous
simplification is too complicated :/
Jhannybean
  • Jhannybean
\[\large \frac{-0.041\pm \sqrt{0.001681 +0.0164}}{2}\] im sure you've got it from here,right? :D
anonymous
  • anonymous
wait i am doing
anonymous
  • anonymous
x= 0.046
anonymous
  • anonymous
-0.087
anonymous
  • anonymous
oh my ...it was a piece of cake!!!...my calculator was giving some crazy values of x
Jhannybean
  • Jhannybean
you're going to get two solutions once you solve \[\large \frac{-0.041- \sqrt{0.001681+0.0164}}{2}\] and \[\large \frac{-0.041+\sqrt{0.001681+0.0164}}{2}\]
Jhannybean
  • Jhannybean
did you find your answers to be correct? :)
anonymous
  • anonymous
yes they are correct thank u
anonymous
  • anonymous
i have confirmed it from wolfram alpha
anonymous
  • anonymous
r u good in chemistry @Jhannybean ?

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