DK7leb1aylaDiie DK7leb1aylaDiie
  • 19-11-2016
  • Mathematics
contestada

For all x > 0 and y > 0, the radical expression:
√x divided by 3√x-√y is equivalent to.
3x + √xy divided by 9x-y.
SOLVE.

Respuesta :

nobillionaireNobley
nobillionaireNobley nobillionaireNobley
  • 22-11-2016
[tex] \frac{ \sqrt{x} }{3 \sqrt{x} - \sqrt{y} } = \frac{3x+ \sqrt{xy} }{9x-y} =\frac{3x+ \sqrt{xy} }{(3 \sqrt{x} - \sqrt{y})(3 \sqrt{x} + \sqrt{y})} \\ \sqrt{x} =\frac{ \sqrt{x} (3 \sqrt{x} + \sqrt{y}) }{(3 \sqrt{x} + \sqrt{y})} \\ \sqrt{x} = \sqrt{x} \\ 1=1[/tex]

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