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weekskeith15

  • one year ago

WILL SOMEONE HELP ME

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  1. owen97
    • one year ago
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    with what

  2. weekskeith15
    • one year ago
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    RADICALS

  3. weekskeith15
    • one year ago
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    wat u mean

  4. owen97
    • one year ago
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    u i might be able to help u

  5. weekskeith15
    • one year ago
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    \[-\sqrt{27}+3\sqrt{3}+2\sqrt{45}+3\sqrt{12}\]

  6. cammyabbo
    • one year ago
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    all you can do here is simplify 3√12

  7. weekskeith15
    • one year ago
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    \[2\sqrt{6}+3\sqrt{45}-2\sqrt{54}-3\sqrt{3}\]

  8. cammyabbo
    • one year ago
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    3√12 is 3√4x3, the square root of 4 is 2 which pops out and u multiply the 3 by 2 to have 6√3

  9. cammyabbo
    • one year ago
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    you should have 9√3

  10. weekskeith15
    • one year ago
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    for the 2nd one or the 1st one

  11. cammyabbo
    • one year ago
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    ok, i thought this was one problem, so you want to simplify the first one right?

  12. weekskeith15
    • one year ago
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    yes

  13. cammyabbo
    • one year ago
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    −√27 + 3√3 + 2√45 +2√45 + 3√12 is where we start right

  14. cammyabbo
    • one year ago
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    crap i have 2squarerrot 45 twice

  15. cammyabbo
    • one year ago
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    take one out

  16. cammyabbo
    • one year ago
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    −√27 + 3√3 + 2√45 + 3√12

  17. weekskeith15
    • one year ago
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    yes that is right

  18. cammyabbo
    • one year ago
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    3√12 can become 3√(4)(3)

  19. weekskeith15
    • one year ago
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    how do u work it out

  20. cammyabbo
    • one year ago
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    since 2 is the SRoot of 4, it comes out to me multiplied by the 3 on the outside, leaving the 3 inside to become 6√3

  21. cammyabbo
    • one year ago
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    3(2)√3 which is 6√3, now you can add this to the other 3√3 in the problem

  22. weekskeith15
    • one year ago
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    add wat one and i think u so much for helpin me thanks

  23. cammyabbo
    • one year ago
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    −√27 + 3√3 +(6√3) + 2√45 you can only add radicals when they are the same inside

  24. weekskeith15
    • one year ago
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    so i add 3and 3

  25. cammyabbo
    • one year ago
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    we can actually simplify the 2 sroot 45. Give me a few min to show you how. Come back in about 5 minutes and it will be done

  26. weekskeith15
    • one year ago
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    alright think u so much

  27. cammyabbo
    • one year ago
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    NP

  28. cammyabbo
    • one year ago
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    http://imgur.com/sxDwY

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