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zaynahf

Radical Equations

  • one year ago
  • one year ago

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  1. zaynahf
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    |dw:1358474597027:dw|

    • one year ago
  2. artofspeed
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    first put two radicals on one side, 2 on the other side

    • one year ago
  3. zaynahf
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    |dw:1358475114425:dw|

    • one year ago
  4. artofspeed
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    square both sides, you'll get x+5-2sqrt(x^2+4x-5)+x-1=4 which simplifies as sqrt(x^2+4x-5)=x now square both side again, you get x^2+4x-5=x^2 which gives x=5/4

    • one year ago
  5. artofspeed
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    for radical problems just keep squaring till all radical symbols disappear

    • one year ago
  6. zaynahf
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    I dont understand how you did that..

    • one year ago
  7. artofspeed
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    which part

    • one year ago
  8. artofspeed
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    btw, you can't square the whole equation, math doesn't work that way

    • one year ago
  9. artofspeed
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    but that's creatives tho

    • one year ago
  10. zaynahf
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    Ohh.. so i have to square one radical, and then the other?

    • one year ago
  11. zaynahf
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    So im squaring it a total of 2 times?

    • one year ago
  12. artofspeed
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    no, u put both radicals on one side, and 2 on the other side, which gives sqr(x+5)-sqrt(x-1)=2

    • one year ago
  13. artofspeed
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    then you square both sides of the equation

    • one year ago
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