Mathematics
15 Online
OpenStudy (breanna.rae):
PLEASE HELP
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OpenStudy (nerdkid):
what do u think?
OpenStudy (nerdkid):
lets see
OpenStudy (nerdkid):
crap i cant do, thats hard
OpenStudy (sweetburger):
is this your question?
\[\sqrt{4(y)}-\sqrt[3]{z^3+x}\sqrt{36}\]
OpenStudy (sweetburger):
ok so this is a substitution again
\[\sqrt{4(4)}-(\sqrt[3]{(-2)^3(-1)})(6)\]
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OpenStudy (sweetburger):
just of of curiosity is the question possibly
\[\sqrt{4(y)}-\sqrt[3]{z^3}+x \sqrt{36}\]
OpenStudy (sweetburger):
if so the answers are a lot easier to deal with
OpenStudy (sweetburger):
well its kind of important lol
OpenStudy (sweetburger):
\[\sqrt{4(4)}-\sqrt[3]{(-2)^3}+(-1)(\sqrt{36})\] so this is where were at
OpenStudy (sweetburger):
now I will simplify it a bit more
\[\sqrt{16}-\sqrt[3]{-8}-\sqrt{36}\]
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OpenStudy (sweetburger):
Do you know how to simplify it from here?
OpenStudy (sweetburger):
Ok what is the square root of 16.
OpenStudy (sweetburger):
ok so lets rewrite it
\[4-\sqrt[3]{-8}-\sqrt{36}\]
OpenStudy (sweetburger):
what is the cube root of -8? (what goes into -8 three times)
OpenStudy (sweetburger):
what is \[-2\times-2\times-2=\]
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OpenStudy (sweetburger):
so the cube root of -8 is -2
OpenStudy (sweetburger):
\[4-(-2)-\sqrt{36}\]
so what is the square root of 36?
OpenStudy (sweetburger):
nice so
\[4-(-2)-6=\]
OpenStudy (sweetburger):
nice good job :)