anonymous
  • anonymous
Please Help! I Need Explanation & Help On How To Do This!!!! Medal and Fan?!?!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
√(8x+1)=5
anonymous
  • anonymous
i need to solve for x and identify if it is an extraneous solution.
anonymous
  • anonymous
Is it \(\huge \sqrt{8x+1}=5\) ?

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anonymous
  • anonymous
yes
anonymous
  • anonymous
\(\huge (\sqrt{8x+1})^2=(5)^2\)
anonymous
  • anonymous
where did you get the power of 2?
anonymous
  • anonymous
So you square both sides to remove the radical sign.
anonymous
  • anonymous
ohhhh nvm wait
anonymous
  • anonymous
i understand why lol
anonymous
  • anonymous
It would now be: \(\huge 8x+1=25\)
anonymous
  • anonymous
so x equals 3??
anonymous
  • anonymous
Yes! To check if it's an extraneous solution, plug in \(\huge x=3\) to the equation.
anonymous
  • anonymous
\(\huge \sqrt{8(3)+1}=5; x=3 \)
anonymous
  • anonymous
whats the difference between non extraneous and extraneous?
anonymous
  • anonymous
extraneous: not a real solution non extraneous: real solution / the x/root is true
anonymous
  • anonymous
\(\huge \sqrt{24+1}=5\) \(\huge \sqrt{25}=5\) Is this true?
anonymous
  • anonymous
yeah
anonymous
  • anonymous
ok thank you so much!!!

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