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anonymous
 3 years ago
Multiply and simplify Radical Expression
1/2√5(1 1/2√20)
anonymous
 3 years ago
Multiply and simplify Radical Expression 1/2√5(1 1/2√20)

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1370239174862:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Hi I got the answer of 7/2√5 but when I do it I get something different.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0okay so lets write that a little prettier to deal with:\[{{1\over2}\sqrt{5}}\times{1~{1\over2}\sqrt{20}}~~\implies~~{{1\over2}\sqrt{5}}\times{{3\over2}\sqrt{20}}~~\implies~~{\sqrt{5}\over2}\times{3\sqrt{20}\over2}\]now that that looks a little better, let's solve:\[{{\sqrt{5}\times3\sqrt{20}}\over2}={3\sqrt{100}\over2}\]because 5 x 20 = 100\[3(10)\over2\]i think you've got it from here :)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0oh i meant to write \[3(10)\over4\]sorry

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I'm a bit lost I have to simplify this so would'nt 1 1/2√20 be 2 3/2√5

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[1 {1\over2} = {3\over2}\]\[\sqrt{20}= 2\sqrt{5}\]\[{3\over2}\times{2\over1}\sqrt{5}~~=~~{3\over\cancel{2}}\times{\cancel{2}\over1}\sqrt{5}~~=~~\large3\sqrt{5}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0but the answer comes out to \[\frac{ 7 }{ 2 }\sqrt{5}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0and where are you getting this from?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Our teacher placed the answer as \[\frac{ 7 }{ 2 }\sqrt{5}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I didn't get this answer either this is why it's confusing

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.01/2 times 3/2 = 3/4 sqrt 5 times sqrt 20 = sqrt100 = 10 3/4 times 10 = 7.5 i dont know what your teacher was doing, maybe you copied the question wrong

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0No it's printed on my paper

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0then im really not sure

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I appreciate your help Thank you yummydum

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I got as my final answer \[\frac{ 3 }{ 4 }\sqrt{5} \] this is why it was confusing

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I had a person help me don't I don't believe it's correct here is why unless I'm wrong

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Alright so i read the whole problem. Where are you stuck? We should get 15/2.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[1\frac{ 1 }{ 2 }\sqrt{20}\] would be \[\frac{ 3 }{ 2 }\] and \[\sqrt{20} would be 2\] add both \[2\frac{ 3 }{ 2 }\sqrt{5}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0teacher has an answer of \[\frac{ 7 }{ 2 }\sqrt{5}\] could the teacher be wrong

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Yes. Teacher added the sqrt5 by misatke. Or maybe the question you wrote is incorrect.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0question is multiply and simplify \[\frac{ 1 }{ 2 }\sqrt{5}\left( 1\frac{ 1 }{ 2 } \sqrt{20}\right)\]

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3dw:1370243682678:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Why is this so complicated? I'm lost

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Which step is it that you don't understand?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0how would I multiply \[\frac{ \sqrt{5} }{ 2 }\times \frac{ 3*2 }{ 2 }\sqrt{5}\] I thought you multiply numbers not square roots with numbers

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0my answer was \[\frac{ 3 }{ 4 }\sqrt{5}\] maybe this is wrong

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3dw:1370244388921:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Wouldn't we keep the root? and just multiply getting \[\frac{ 15 }{ 2 }\sqrt{5}\]

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3No ma'am. Whenever it's given: sqrt3 * sqrt3 we will get "3" as answer. The roots cancel out leaving you with ONE three.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0This is how I started \[\frac{ 1 }{ 2 }\sqrt{5}(1\frac{1 }{ 2 }\sqrt{20})\] \[\frac{ 1 }{ 2 }\sqrt{5}(\frac{3 }{ 2 }\sqrt{5})\] \[\frac{ 1 }{ 2 }\times \frac{ 3 }{ 2 }=\frac{ 3 }{ 4 }\sqrt{5}\] I know this isn't corrected but I get this

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3How will you simplify sqrt 20?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0that's right it would be 4*5 which 4 goes down to 2 so it would be \[2\sqrt{5}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0I forgot to add that \[\frac{ 1 }{ 2 }\sqrt{5}(2\frac{3 }{ 2 }\sqrt{5})\] it would be this correct and mix fractions to improper fractions would be \[2\frac{ 3 }{ 2 } would be \frac{ 7 }{ 2 }\] \[\frac{ 1 }{ 2 }\sqrt{5}(\frac{ 7 }{ 2 }\sqrt{5})\]

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3You made a mistake again. :P It's not 2 3/2

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0so it's \[\frac{ 2 }{ 1 }X\frac{ 3 }{ 2 }\]

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3No. I think you should redo the problem. Show me yor steps please.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 1 }{ 2 }\sqrt{5}(1\frac{ 1 }{ 2 }\sqrt{20})\] \[\frac{ 1 }{ 2 }\sqrt{5}(\frac{ 3 }{ 2 } 2\sqrt{5})\] \[\frac{ 1 }{ 2 }\sqrt{5}(\frac{ 3 }{ 2 } 2\sqrt{5})\] at this point I'm lost

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Awesome. No the 2's on right cancels out. Right?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0why would it cancel √20 would be 2√5 this is where I'm getting confused

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0is 2 canceling with the other 2

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3sqrt(20) = sqrt(2*2*5) = 2 sqrt5 Agree?

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Now the 2 from 2sqrt5 and the w in the denominator on the right canel out

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Right o what are we left with now?

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Right. And that is multiplied with..?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 1 }{ 2 }\sqrt{5}\]

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Right now multiply it out.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 1 }{ 2 }\sqrt{5}\times \frac{ 3 }{ 1 }\sqrt{5}\] Is this looking correct?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 3 }{ 2 }\sqrt{5}\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0do I take of the √ and make it \[\frac{ 3 }{ 2 }\times \frac{ 5 }{ 1 }=\frac{ 15 }{ 2 }\]

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Thanks for everything wow :.)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Good job helping @newatthis !!! @saifoo.khan

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Kudos to @yummydum too!

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3@yummydum is useless.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Yummydum isn't. Or you,for that matter.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Thanks for everything it helps a lot when someone knows how to guide and explain it. :)

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3@help123please. believe me. I know her. @newatthis You're welcome. :)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Well,yes...you've been here longer than me.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Lol. But no doubt she has a brown brain like me! D:

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Yours is a great brain,Saif.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0U ARE 2 HELPFUL. Lol.

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3And it's brown too!

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3I'm brown. Brain is brown too. Dummy is brown too. Hence she has a brown brain too.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0We're prolly weirding @newatthis out. Or at least,I am.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0'Hence,she has a brown brain too'. Hence. I like that word.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0no I'm just doing math working my brain, or whatever is left. :)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Saif,I just noticed your smartscore is mine,with the numbers flipped upside down. XD

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0*Flips PC upside down* OMGEE I HAVE A 99 SS!

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.098% of the time,when typing lol,you're not actually laughing. Did u know? :P

saifoo.khan
 3 years ago
Best ResponseYou've already chosen the best response.3Make that 99%. I love laughing. It helps in exercising my face muscles. :P

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0so new question? \[2x \sqrt{7}(3x \sqrt{7})\] \[2x(3x)\sqrt{7}\sqrt{7}\] \[6x(\sqrt{49})\] Would this be correct?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0sorry I just threw this in here

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0@newatthis please close this post and create a new thread.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.02x * 3x = 6x^2 not just 6x and √49 = 7 so now you have 6x^2 * 7 ....which is?
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