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InsanelyChaotic

  • 2 years ago

Rationalize the denominator 5 ________________ (6-4sq root 7) - (8-5sq root 7)

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  1. hartnn
    • 2 years ago
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    what have u tried ?

  2. RolyPoly
    • 2 years ago
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    First, simplify the denominator: \[(6-4\sqrt7) - (8-5\sqrt7)\] Add the like terms.

  3. Kelumptus
    • 2 years ago
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    There is no denominator....

  4. InsanelyChaotic
    • 2 years ago
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    |dw:1354942795145:dw|

  5. slaaibak
    • 2 years ago
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    @Kelumptus there is. it's 5 / radical

  6. InsanelyChaotic
    • 2 years ago
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    wow you're telling me all of you guys like math????

  7. RolyPoly
    • 2 years ago
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    @Kelumptus The fraction is \[\frac{5}{(6-4\sqrt7) - (8-5\sqrt7)}\]

  8. Kelumptus
    • 2 years ago
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    Ahhh... i missed the 5 in the question, cheers.

  9. InsanelyChaotic
    • 2 years ago
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    |dw:1354942881953:dw|

  10. hartnn
    • 2 years ago
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    what ?

  11. InsanelyChaotic
    • 2 years ago
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    Really?!!!!!!!!!!!!!!!! I'm RIGHT?!!!!!!!!!!!!!!!!!!!!

  12. InsanelyChaotic
    • 2 years ago
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    Nothing, disregard what's above

  13. hartnn
    • 2 years ago
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    yeah, the previous answer was correct...

  14. hartnn
    • 2 years ago
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    or were you typing options ? :P

  15. InsanelyChaotic
    • 2 years ago
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    I didn't mean to send the one above. thank god!

  16. InsanelyChaotic
    • 2 years ago
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    It was work i was doing on my own haha that "post" button is clicking itself eh? ;) jk

  17. hartnn
    • 2 years ago
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    oh, wait...you sure there is no sign mistake ?

  18. InsanelyChaotic
    • 2 years ago
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    In the answer?

  19. hartnn
    • 2 years ago
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    yeah, u sure about your answer ?

  20. InsanelyChaotic
    • 2 years ago
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    |dw:1354943056191:dw|

  21. slaaibak
    • 2 years ago
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    \[{5 \over -2 + \sqrt 7} = { {5 \over -2 + \sqrt 7} \times {-2 - \sqrt 7 \over -2 - \sqrt 7}} = { {10 + 5\sqrt 7} \over {3}}\]

  22. hartnn
    • 2 years ago
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    yup. thats absolutely correct, just checking that you were sure or not ......

  23. slaaibak
    • 2 years ago
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    hartnn that's not correct.

  24. hartnn
    • 2 years ago
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    O.o

  25. InsanelyChaotic
    • 2 years ago
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    HUH?

  26. slaaibak
    • 2 years ago
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    Check my answer for the correct thing.

  27. hartnn
    • 2 years ago
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    oh, yes, slaaibak is right, you missed a 5, @InsanelyChaotic

  28. InsanelyChaotic
    • 2 years ago
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    Oh did I???? my error

  29. InsanelyChaotic
    • 2 years ago
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    thank you for the heads up!

  30. InsanelyChaotic
    • 2 years ago
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    |dw:1354943282970:dw|

  31. hartnn
    • 2 years ago
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    yup.

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