doughae
doughae doughae
  • 21-07-2017
  • Mathematics
contestada

use the foil method to find the product
(r-9)(r+4)

Respuesta :

reinderegames20 reinderegames20
  • 21-07-2017
(r-9)(r+4)
r^2+4r-9r+36
r^2-5r+36
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