kelton24kt
kelton24kt kelton24kt
  • 07-06-2019
  • Mathematics
contestada

Which are factors of x2 – 4x – 5? Check all that apply.
1.) (x – 5)
2.) (x – 4)
3.) (x – 2)
4.) (x + 1)
5.) (x + 5)

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Ammimochi
Ammimochi Ammimochi
  • 07-06-2019

Ask: Which two numbers add up to -4 and multiply to -5?

-5 and 1

Rewrite the expression using the above

= (x - 5) and (x + 1)

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