SOLUTION: Rationalize the denominator of each expression. http://i732.photobucket.com/albums/ww330/school_hard/IMG_48241-1.jpg http://i732.photobucket.com/albums/ww330/school_hard/

Algebra ->  Rational-functions -> SOLUTION: Rationalize the denominator of each expression. http://i732.photobucket.com/albums/ww330/school_hard/IMG_48241-1.jpg http://i732.photobucket.com/albums/ww330/school_hard/      Log On


   

Question 181487: Rationalize the denominator of each expression.

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Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%287x%29%2Fsqrt%283%29. to rationalize multiply the numerator and denominator by sqrt%283%29......square root of 3 times square root of 3 is 3
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sqrt%287x%29sqrt%283%29%2F3
:
highlight%28sqrt%2821x%29%2F3%29
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root%283%2Cx%5E2%29%2Froot%283%2C4%29 multiply top and bottom by root%283%2C4%5E2%29
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root%283%2Cx%5E2%29root%283%2C16%29%2F4because you would have root%283%2C64%29in the denomiator and that equals 4.....because 64=4*4*4
:
highlight%28root%283%2C16x%5E2%29%2F4%29