kaileefpalacioox6hx4 kaileefpalacioox6hx4
  • 04-07-2020
  • Mathematics
contestada

Factor this trinomial.
х^2 - 9х+ 20
А. (х- 4)(х+ 5)
В. (х-2)(х+ 10)
С. (х-2)(х- 10)
D. (x-4)(х - 5)

Respuesta :

snog
snog snog
  • 04-07-2020

Answer:

D

Step-by-step explanation:

We're looking for two numbers that have a sum of -9 and a product of 40. These 2 numbers are -4 and -5 so the answer is (x - 4)(x - 5).

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 04-07-2020

Answer:

(x-4)(x-5)

Step-by-step explanation:

х^2 - 9х+ 20

What 2 numbers multiply to 20 and add to -9

-4*-5 = 20

-4+-5 = -9

(x-4)(x-5)

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