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Mathematics 20 Online
OpenStudy (anonymous):

simplify 3sqrt 27

OpenStudy (anonymous):

9sqrt3

OpenStudy (anonymous):

9sqrt(3)

OpenStudy (anonymous):

\[3\sqrt{3 \times 3 \times 3} = 9\sqrt{3}\]

OpenStudy (anonymous):

unless it is \[\sqrt[3]{27}=3\]

OpenStudy (anonymous):

@carla1, i wrote "cubed root of 27 is 3"

OpenStudy (anonymous):

if it looks like \[\sqrt[3]{27}\] it means the cube root if it looks like \[3\sqrt{27}\] is means 3 times the square root

OpenStudy (anonymous):

yes sorry I couldn't see your respose

OpenStudy (anonymous):

3 is inside the sqrt 27

OpenStudy (anonymous):

ok that doesn't mean "square root" that means "cubed root"

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

\[\sqrt{25}=5\] because \[5^2=25\] but \[\sqrt[3]{27}=3\] because \[3^3=27\]

OpenStudy (anonymous):

hope the difference is clear

OpenStudy (anonymous):

and in class don't say "3 square root" because your teacher will look at you funny

OpenStudy (anonymous):

ok thanks I got it so the answere is 3^3 = 27 right?

OpenStudy (anonymous):

sorry I am having a hard time using the board this is my first time using it

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