ashvinmsingh ashvinmsingh
  • 08-03-2019
  • Mathematics
contestada

Factor x2 - x - 72

A (x - 9)(x + 8)

B (x + 9)(x - 8)

C (x - 36)(x - 36)

D (x - 9)(x - 8)

Respuesta :

choixongdong
choixongdong choixongdong
  • 08-03-2019

Answer:

A (x - 9)(x + 8)

Step-by-step explanation:

x^2 - x - 72

As you know -72 = -9 * 8 and -9 + 8 = -1

So factor:

= (x - 9)(x + 8)

Answer:

A (x - 9)(x + 8)

Answer Link
Anonymouslizard
Anonymouslizard Anonymouslizard
  • 08-03-2019

Answer:

Factor x2 - x - 72

A) (x - 9)(x + 8)  <=YOUR ANSWER

B) (x+9)(x - 8)

C) (x - 36)(x - 36)

D) (x - 9)(x - 8)

Answer Link

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