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hal_stirrup

  • 3 years ago

factor out this> x^4 -25 explain the answer if you could plz. thanks

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  1. telliott99
    • 3 years ago
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    difference of squares a^2 - b^2 = (a + b)(a - b)

  2. hal_stirrup
    • 3 years ago
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    thanks . solve it plz

  3. telliott99
    • 3 years ago
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    Oh, I think you can do sqrt(x^4), and sqrt(25)

  4. ParthKohli
    • 3 years ago
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    @hal_stirrup Did you understand?

  5. ParthKohli
    • 3 years ago
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    Can you tell what \(\sqrt{25}\) and \(\sqrt{x^4}\) are?

  6. best.shakir
    • 3 years ago
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    |dw:1343912368667:dw|

  7. best.shakir
    • 3 years ago
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    1 min i will explain

  8. ayushprasad
    • 3 years ago
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    Find the square root of x^4 and 25 = x^2 and 5 Difference of squares: (a+b)(a-b) (x^2-5)(x^2+5)

  9. ayushprasad
    • 3 years ago
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    You can use FOIL to expand it back out and you will get x^4-25

  10. hal_stirrup
    • 3 years ago
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    thanks .

  11. koli123able
    • 3 years ago
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    then either at x^2=5 or x^2=5

  12. koli123able
    • 3 years ago
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    sorry it will be x^2=5 or x^2=-5

  13. koli123able
    • 3 years ago
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    on squaring in x^2=5 the value of x will be 25

  14. koli123able
    • 3 years ago
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    and on squaring x^2=-5 the value of x will be the same 25

  15. hal_stirrup
    • 3 years ago
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    thanks @koli123able.

  16. hal_stirrup
    • 3 years ago
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    how did you get to x^2=5 or x^2=-5 explain plz. thanks

  17. koli123able
    • 3 years ago
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    yes can i help you

  18. koli123able
    • 3 years ago
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    ANYONE THERE

  19. hal_stirrup
    • 3 years ago
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    yes

  20. hal_stirrup
    • 3 years ago
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    please take it from the top.

  21. koli123able
    • 3 years ago
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    x^4-25

  22. koli123able
    • 3 years ago
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    sorry i type too wrong

  23. koli123able
    • 3 years ago
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    (x)^2 - (5)^2

  24. koli123able
    • 3 years ago
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    opening it by formula (a - b)^2

  25. hal_stirrup
    • 3 years ago
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    you squared it!

  26. koli123able
    • 3 years ago
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    (x-5)^2

  27. koli123able
    • 3 years ago
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    take 2 power common

  28. hal_stirrup
    • 3 years ago
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    sure

  29. koli123able
    • 3 years ago
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    |dw:1343914819831:dw|

  30. koli123able
    • 3 years ago
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    now

  31. koli123able
    • 3 years ago
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    |dw:1343914855995:dw|

  32. koli123able
    • 3 years ago
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    ohhhhh my gooodddddd i am doing it wrong

  33. koli123able
    • 3 years ago
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    sorry from the top

  34. hal_stirrup
    • 3 years ago
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    take you time :)

  35. koli123able
    • 3 years ago
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    |dw:1343914919685:dw|

  36. koli123able
    • 3 years ago
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    did u get it till here

  37. hal_stirrup
    • 3 years ago
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    yes. thanks

  38. koli123able
    • 3 years ago
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    now u can solve it further but this answer is absoluteley right

  39. hal_stirrup
    • 3 years ago
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    so what about "x^2=5 or x^2=-5 "

  40. koli123able
    • 3 years ago
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    |dw:1343915068883:dw|

  41. koli123able
    • 3 years ago
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    suppose it as an equation in some parts of world they solve it by this too

  42. hal_stirrup
    • 3 years ago
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    but this is am expression!! dose that last bit matter?

  43. koli123able
    • 3 years ago
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    |dw:1343915159215:dw|

  44. hal_stirrup
    • 3 years ago
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    bless you . your so helpful . |dw:1343915234400:dw|

  45. koli123able
    • 3 years ago
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    the whole asked to factorize the result is at the top but if someone says factorize and get the values of variable then u need to get a bit further

  46. koli123able
    • 3 years ago
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    |dw:1343915283974:dw|

  47. koli123able
    • 3 years ago
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    |dw:1343915322903:dw|

  48. hal_stirrup
    • 3 years ago
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    i see . so an an equation i need to finde the vales of x in this case!!! right

  49. koli123able
    • 3 years ago
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    Thus, the Solution Set is {25,25}

  50. koli123able
    • 3 years ago
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    right

  51. koli123able
    • 3 years ago
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    bye

  52. koli123able
    • 3 years ago
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    are u on facebook

  53. koli123able
    • 3 years ago
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    send me a friend request http://www.facebook.com/koli123able/

  54. koli123able
    • 3 years ago
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    lets be friends

  55. hal_stirrup
    • 3 years ago
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    thanks. no i dont really use face book that much. but i will send you request.

  56. koli123able
    • 3 years ago
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    ok

  57. hal_stirrup
    • 3 years ago
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    cool

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