porkchop2623 porkchop2623
  • 13-06-2017
  • Mathematics
contestada

What is the factored form of b2 – 4b – 32?


(b – 8)(b – 4)


(b – 8)(b + 4)


(b + 8)(b – 4)


(b + 8)(b + 4)

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 06-09-2019

Answer:

  (b – 8)(b + 4)

Step-by-step explanation:

The signs of the binomial constants must be different in order for their product to be -32.

The one with the larger magnitude must be negative in order for their sum to be -4. The only viable choice is (b -8)(b +4).

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