VivianDominguez VivianDominguez
  • 28-07-2015
  • Mathematics
contestada

can someone explain to me how to solve this?

can someone explain to me how to solve this class=

Respuesta :

JaySL JaySL
  • 28-07-2015
We can factor into (3r-7)(r-2).  Recognizing these factorizations takes time, so don't worry if it's hard at first.
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