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sat_chen

  • one year ago

question on how to solve this integration by quadratics

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  1. sat_chen
    • one year ago
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    |dw:1360167916055:dw|

  2. hartnn
    • one year ago
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    can u complete the square in denominator ?

  3. sat_chen
    • one year ago
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    can you solve it using quadratics technique or would you do it using partial

  4. hartnn
    • one year ago
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    \(x^2-2x+2= (x-....)^2+...^2\)

  5. sat_chen
    • one year ago
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    when i tried quadratic equation i got (x-4)(x-2) which wouldnt work

  6. sat_chen
    • one year ago
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    ah (x-1)^2 would work too

  7. hartnn
    • one year ago
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    (x-4)(x-2) ??? how ?

  8. sat_chen
    • one year ago
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    (x-1)^2 + 1^2 would work right

  9. sat_chen
    • one year ago
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    my bad what i meant was (x+2)(x-4)

  10. sat_chen
    • one year ago
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    but then you cant square it to use the quadratic stuff

  11. hartnn
    • one year ago
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    (x-1)^2 + 1^2 would work right \(\checkmark \)

  12. sat_chen
    • one year ago
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    i think i got it from here i forgot you could split + 2 into another piece

  13. hartnn
    • one year ago
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    put u = x-1 and use the standard formula for 1/ (x^2+a^2)

  14. sat_chen
    • one year ago
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    i had my mindset on adding stuff to make it right

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