Mathematics
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OpenStudy (anonymous):
What simplified radical is equivalent to this value?
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OpenStudy (anonymous):
what value?
OpenStudy (anonymous):
\[\sqrt{28}\]
OpenStudy (anonymous):
oh 2 sqrt(7)
OpenStudy (anonymous):
\[2\]
OpenStudy (anonymous):
would it be \[4\sqrt{7}\]
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OpenStudy (anonymous):
nope 2*2 is 4
OpenStudy (anonymous):
\[2\sqrt{7}\] ?
OpenStudy (anonymous):
when u take the 4 out of the radical, then you have to square root it
OpenStudy (primeralph):
@jessy1289 Hold on.
How much math do you readily know?
OpenStudy (anonymous):
lol
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OpenStudy (primeralph):
@Jenjop Not joking. Trying to help her learn once and for all.
OpenStudy (anonymous):
hey don't be picking on @jessy1289 she learned a bunch yesterday
did quite a few by herself
OpenStudy (primeralph):
@satellite73 You know me better than that.
OpenStudy (anonymous):
steps go like this
\[\sqrt{28}=\sqrt{4\times 7}=\sqrt{4}\times \sqrt{7}=2\sqrt{7}\]
OpenStudy (agent0smith):
You can break up the square root like so.\[\Large \sqrt {28} = \sqrt { 4 * 7} = \sqrt 4 \sqrt 7\]
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OpenStudy (anonymous):
lol yeah @\('ralph\) i do
OpenStudy (anonymous):
i got it now guys thanks and thank you @satellite73
OpenStudy (primeralph):
@jessy1289 All you have to do is know the basic perfect squares: 2 4 9 16 25 etc and pull them out whenever you see them in the square root.
OpenStudy (mathstudent55):
@primeralph
2 is a perfect square?
OpenStudy (agent0smith):
1 is such a nice perfect square that he listed it twice.
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OpenStudy (primeralph):
I'm half awake.
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