Question 201813
sqrt (x/3) * sqrt ( 5/(x-2) )
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sqrt{ (x/3) * (5/(x-2) )  }
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sqrt { ( 5x) / ( 3x-6) }
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to  rationalize  den,,,mult  num  &  den  by  sqrt(3x-6)
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{sqrt (5x) *sqrt(3x-6)} / {sqrt(3x-6)* sqrt(3x-6)}
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sqrt( 15x^2 -30x) / (3x-6)
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check using  x=1,  both  answer  and  original = sqrt(-15)/-3,,,,ok