magalysalinas02 magalysalinas02

06-12-2017
Mathematics

contestada

How many solutions does 9x^2-12x+4=0 have?

Respuesta :

Dawson14 Dawson14

06-12-2017

9x^2-6x-6x+4=0
3x(3x-2)-2(3x-2)=0
(3x-2)(3x-2)=0
x=2/3

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