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anonymous

  • 5 years ago

what is square root -108 + swuareroot -27 ????

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  1. anonymous
    • 5 years ago
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    use the equation generator please

  2. anonymous
    • 5 years ago
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    where is the equation generator

  3. anonymous
    • 5 years ago
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    the button that says equation on the other side of the post button

  4. anonymous
    • 5 years ago
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    Or you could just post it to wolframalpha since you're not really trying to get help as much as just get the answer.

  5. anonymous
    • 5 years ago
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    \[ \sqrt{-6}(2+ \sqrt{-8})\]

  6. anonymous
    • 5 years ago
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    can you explain how to do it if yu can please and try to ignore polpak i am trying to get help hence on y i am posting questions like everyone else

  7. anonymous
    • 5 years ago
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    you know that \[\sqrt{i }=\sqrt{-1}\] and that \[\sqrt{ab}=\sqrt{a}\sqrt{b}\]

  8. anonymous
    • 5 years ago
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    yes

  9. anonymous
    • 5 years ago
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    multiply the \[\sqrt{-6}\] and show me what you get

  10. anonymous
    • 5 years ago
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    so your saying break down the -6 and then muliply it by the whole equation

  11. anonymous
    • 5 years ago
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    multiply the \[\sqrt{-6} \] in first then show me what you get

  12. anonymous
    • 5 years ago
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    \[2\sqrt{3}\]

  13. anonymous
    • 5 years ago
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    \[\sqrt{-6} \times 2= ?\]

  14. anonymous
    • 5 years ago
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    \[2\sqrt{-6}=2i \sqrt{6}\]

  15. anonymous
    • 5 years ago
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    yes because there is an invisble -1 which equals 1

  16. anonymous
    • 5 years ago
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    *i

  17. anonymous
    • 5 years ago
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    the \[\sqrt{-1}\] is an imaginary number and we call this \[i\]

  18. anonymous
    • 5 years ago
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    now multiply \[\sqrt{-6}\sqrt{-8}\]=?

  19. anonymous
    • 5 years ago
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    using the rule \[\sqrt{ab} =\sqrt{a}\sqrt{b}\]

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spraguer (Moderator)
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