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xxfreshboy Group Title

Find conman solution algebraically and express itrrational roots in simplest radical form. x^2+y^2=24 x+y=8

  • one year ago
  • one year ago

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  1. shubhamsrg Group Title
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    where are you stuck ?

    • one year ago
  2. xxfreshboy Group Title
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    I dont know anything at all to be honest.

    • one year ago
  3. xxfreshboy Group Title
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    About this topic.

    • one year ago
  4. abcabc Group Title
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    You could start with thes second equation and find an expression for x= (or y= if you choose) and then substitute that into the first equation.

    • one year ago
  5. xxfreshboy Group Title
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    I dont get anything =/ second all Just go to shift x to other side right and makes t y=x-8

    • one year ago
  6. cinar Group Title
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    y=8-x

    • one year ago
  7. cinar Group Title
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    x^2+(8-x)^2=24

    • one year ago
  8. cinar Group Title
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    x^2+64-16x+x^2=24

    • one year ago
  9. cinar Group Title
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    2x^2-16x+40=0

    • one year ago
  10. cinar Group Title
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    x^2-8x+20=0

    • one year ago
  11. xxfreshboy Group Title
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    so y cnt be x-8 but has to 8-x?

    • one year ago
  12. cinar Group Title
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    yes..

    • one year ago
  13. cinar Group Title
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    (x-10)(x+2)=0 x=10 x=-2

    • one year ago
  14. xxfreshboy Group Title
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    so those will be the solutions right?

    • one year ago
  15. cinar Group Title
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    find b's also..

    • one year ago
  16. cinar Group Title
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    I meant y

    • one year ago
  17. cinar Group Title
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    because these eq. are two variable..

    • one year ago
  18. xxfreshboy Group Title
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    could you just guide me through like what to do?

    • one year ago
  19. cinar Group Title
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    choose one of the eq. it does not matter which one, x+y=8 is easier one than put for x=10 find y for x=-2 find y

    • one year ago
  20. xxfreshboy Group Title
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    thank you!

    • one year ago
  21. cinar Group Title
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    hold on I made a mistake..

    • one year ago
  22. cinar Group Title
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    until this it is true, but I made a mistake when I factored it out.. x^2-8x+20=0

    • one year ago
  23. cinar Group Title
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    ax^2+bx+c=0 d=b^2-4ac d=8^2-4*1*20=-16<0 no real solution..

    • one year ago
  24. cinar Group Title
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    it means that they are not crossing each other..

    • one year ago
  25. cinar Group Title
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    sorry about that..

    • one year ago
  26. cinar Group Title
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    root are complex number..

    • one year ago
  27. xxfreshboy Group Title
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    its okay thanks for your time, really appreciate all this walk through.

    • one year ago
  28. cinar Group Title
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    http://www.wolframalpha.com/input/?i=solve+x^2%2By^2%3D24%2Cx%2By%3D8

    • one year ago
  29. cinar Group Title
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    you can see it here

    • one year ago
  30. xxfreshboy Group Title
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    yes thank you!

    • one year ago
  31. cinar Group Title
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    np

    • one year ago
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