athenahulbertotmh3q athenahulbertotmh3q
  • 25-07-2017
  • Mathematics
contestada

Factor the four-term polynomial ab + ac - 4b - 4c

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sarahlynnam121 sarahlynnam121
  • 25-07-2017
a b + a c - 4 b - 4 c = a ( b + c ) - 4 ( b + c ) = 
= (b + c) (a - 4)
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