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weekskeith1666

  • 3 years ago

will someone help ,me please

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  1. weekskeith1666
    • 3 years ago
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    \[-\sqrt{8}-4\sqrt{7}+2\sqrt{72}-2\sqrt{7}\]

  2. cammyabbo
    • 3 years ago
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    all you can do is simplify

  3. cammyabbo
    • 3 years ago
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    combine like radicals

  4. weekskeith1666
    • 3 years ago
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    can u work it out and show me please

  5. cammyabbo
    • 3 years ago
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    you can further simplify -\[\sqrt{8}\]

  6. cammyabbo
    • 3 years ago
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    yes

  7. weekskeith1666
    • 3 years ago
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    thank you

  8. cammyabbo
    • 3 years ago
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    \[-\sqrt{8}\] is really -\[\sqrt{4x2}\]

  9. cammyabbo
    • 3 years ago
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    the 4 comes out as a 2 because the sq root of 4 is 2. put it out front with the negative sign

  10. cammyabbo
    • 3 years ago
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    -2\[-\sqrt{2}\]

  11. cammyabbo
    • 3 years ago
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    crap

  12. cammyabbo
    • 3 years ago
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    -2√2

  13. cammyabbo
    • 3 years ago
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    the -4√7 and -2√7 become -6√7

  14. cammyabbo
    • 3 years ago
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    2√72 can be 2√(9)(8)

  15. cammyabbo
    • 3 years ago
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    9 pops out as 3, multiply it with the 2 to get 6√8, this further simplifies too

  16. cammyabbo
    • 3 years ago
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    6√(4)(2)

  17. cammyabbo
    • 3 years ago
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    4 pops out as 2, times it by 6 for 12√2

  18. cammyabbo
    • 3 years ago
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    combine that with our other √2 we first simplified

  19. cammyabbo
    • 3 years ago
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    10√2 - 6√7 all done

  20. weekskeith1666
    • 3 years ago
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    thats the answer

  21. cammyabbo
    • 3 years ago
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    yes, you cant simplify any further

  22. weekskeith1666
    • 3 years ago
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    do u mind putin it all togther how do do it i want to try it on my own

  23. weekskeith1666
    • 3 years ago
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    like all of it on one page

  24. cammyabbo
    • 3 years ago
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    ya, give me a few min, I'll write it out

  25. weekskeith1666
    • 3 years ago
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    thanks ur the best im glad u helped me out means alot to me

  26. cammyabbo
    • 3 years ago
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    no Prob at all

  27. weekskeith1666
    • 3 years ago
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    just write it wen u get done with it

  28. cammyabbo
    • 3 years ago
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    http://imgur.com/A3F8U

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