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Mathematics 15 Online
OpenStudy (breanna.rae):

PLEASE HELP

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 \[\sqrt{4(4)}-(\sqrt[3]{(-2)^3(-1)})(6)\]

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 \[\sqrt{16}-\sqrt[3]{-8}-\sqrt{36}\]

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 \[-2\times-2\times-2=\]

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 :)

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