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Mathematics 17 Online
OpenStudy (anonymous):

anybody know what 5 square root of 3x to the 3rd power - 2 square root of 27x to the third power?

OpenStudy (anonymous):

\[5\sqrt{3x ^{3}} - 2\sqrt{27x ^{3}}\]

OpenStudy (help!!!!):

you first change 27 to a square number by..........?

OpenStudy (help!!!!):

....................

OpenStudy (help!!!!):

3x3x3 = 3^2*3

OpenStudy (help!!!!):

|dw:1357075221546:dw|

OpenStudy (help!!!!):

|dw:1357075388796:dw|

OpenStudy (help!!!!):

so step 1 is to change all the coefficent to a square number or change everything squared

OpenStudy (anonymous):

I don't get what you mean by that.

OpenStudy (anonymous):

wouldn't you just do this...

OpenStudy (help!!!!):

i did the answer is the last post i did

OpenStudy (help!!!!):

\[\sqrt{3x}-x\]

OpenStudy (anonymous):

|dw:1357075725890:dw|

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