anonymous
  • anonymous
-3√64 find real roots
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Callisto
  • Callisto
\[\sqrt{64}=\sqrt{8^2} =8\]Therefore\[\-3sqrt{64}=-3\sqrt{8^2} =-3(8)\]Can you work it out?
anonymous
  • anonymous
-24 and 24
anonymous
  • anonymous
isn't it .25? a website calculator gave me that answer..

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Callisto
  • Callisto
Revised: \[\sqrt{64} = \pm8\]Therefore\[-3\sqrt{64} =-3( \pm8)\] = -3(8) or -3 (-8) = -24 or 24 Sorry my mistakes!
anonymous
  • anonymous
its not -3 times the square root of 64 its negative cube root of 64
anonymous
  • anonymous
\[\huge \sqrt[-3]{64}\] like this??
anonymous
  • anonymous
yes, my bad i made it look like -3 times the square root 64 lol
Callisto
  • Callisto
\[-\sqrt[3]{64}= -\sqrt[3]{4^3} = -4\]
anonymous
  • anonymous
Thanks!!!
Callisto
  • Callisto
Welcome, but do you understand?
anonymous
  • anonymous
yes :] i just got confused lol
anonymous
  • anonymous
Hold on... is it \[\huge \sqrt[-3]{64} \quad or \quad -\sqrt[3]{64}\]
anonymous
  • anonymous
first one
anonymous
  • anonymous
how do u make it look like that?
Callisto
  • Callisto
\[\sqrt[-3]{64} = 1/\sqrt[3]{64} = 1/4\] My bad :(
anonymous
  • anonymous
wait wtf.
anonymous
  • anonymous
ugh now im confused again =[ i thought it was -4 and the website amde a mistake =/
Callisto
  • Callisto
Sorry i misunderstood your question twice..
anonymous
  • anonymous
made*
anonymous
  • anonymous
\[\huge \sqrt[-3]{64}=\sqrt[-3]{2^8} =\left(2\right)^{\frac{8}{-3}}\]
anonymous
  • anonymous
64 cubed is 4.. why did u put it s 2^8?
anonymous
  • anonymous
I screw them up always ! LOL ... now I see it ! :S
anonymous
  • anonymous
lol its kewl, where the flutter is callisto??
anonymous
  • anonymous
\[\huge \sqrt[-3]{64}=\left(4\right)^{\frac{3}{-3}}=4^{-1}=\frac14\]
anonymous
  • anonymous
Thanks bro I get it now!!
anonymous
  • anonymous
Glad to help :)
Callisto
  • Callisto
my English fails me :(
anonymous
  • anonymous
@Callisto You're not British\American ??
Callisto
  • Callisto
Neither of them :(
anonymous
  • anonymous
where do you live?
anonymous
  • anonymous
hey just a quick question can there be a negetive number in the radicand of a cube root?
anonymous
  • anonymous
draw it.. I don't understand it at all !

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