mohammadmuneer2008
mohammadmuneer2008 mohammadmuneer2008
  • 12-09-2021
  • Mathematics
contestada

a^3 + 2a^2 - a + 5 (a= -4)​

Respuesta :

lolipopctk
lolipopctk lolipopctk
  • 12-09-2021

Answer:

-23

Step-by-step explanation:

Question: (-4)^3 + 2(-4)^2 - (-4) + 5

-4^3 = -64

= -64 + 2(-4)^2 - (-4) + 5

(since a is squared, and a = (-4), the minus is also squared.)

= -64 + 2*16 + 4 + 5

= -64 + 32 + 4 + 5

= -23

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