avz2000
avz2000
09-12-2015
Mathematics
contestada
factor the expression 9x^2-4
Respuesta :
Exvited
Exvited
03-01-2016
[tex]9x^2 - 4 \\ \\ (3x)^2 - 2^2 \\ \\ (3x+2)(3x-2) \\ \\ Answer: \fbox {(3x+2)(3x-2)} [/tex]
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