starlett starlett
  • 01-06-2017
  • Mathematics
contestada

I don't understand how to solve this

I dont understand how to solve this class=

Respuesta :

anonymous79
anonymous79 anonymous79
  • 01-06-2017
x^2+81=4x^2
3x^2=81
x^2=27
x=(27)^0.5
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