SOLUTION: i have this question but i dont know how to solve it can you help me? the question say:For all x>0 and y>0, the radical expresion square root of x/ 3square root of x - square root

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Question 88878: i have this question but i dont know how to solve it can you help me?
the question say:For all x>0 and y>0, the radical expresion square root of x/ 3square root of x - square root of y i equivalent to: and i have options
a) 3x- square root of xy/ 9x +y
b) 3x- square root of xy/ 3x +y
c) 3x -square root of xy/ 9x -y
help me plizzz!!!

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!


Multiply the fraction by



Distribute

Multiply

FOIL the denominator


Combine like terms

Combine the square roots





So the answer is note: this is just like your last choice, but it has 3x minus the square root instead of 3x plus the square root, so check your choices again.

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