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Saylilbaby

  • one year ago

find the exluded value pls ...I need help ...I will medal

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  1. saylilbaby
    • one year ago
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    2/(x^2-1)+x/(x^2-2x+1)

  2. jim_thompson5910
    • one year ago
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    set x^2-1 equal to zero and solve set x^2-2x+1 equal to zero and solve

  3. jim_thompson5910
    • one year ago
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    this is done because you cannot divide by zero

  4. saylilbaby
    • one year ago
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    huh @jim_thompson5910 im confused

  5. jim_thompson5910
    • one year ago
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    are you able to solve x^2-1 = 0 ?

  6. saylilbaby
    • one year ago
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    yes ..I got x=1,-1 @jim_thompson5910

  7. jim_thompson5910
    • one year ago
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    good

  8. jim_thompson5910
    • one year ago
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    how about x^2-2x+1 = 0

  9. saylilbaby
    • one year ago
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    I got x=1 double root @jim_thompson5910

  10. jim_thompson5910
    • one year ago
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    so x = -1 and x = 1 are the excluded values. They are excluded to avoid dividing by zero.

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