Respuesta :

Answer:

-3

Step-by-step explanation:

  1. Plug -1 in: [tex]-1^{2} + -1^{2} + -1^{2}[/tex]  
  2. Simplify: -1 + -1 + -1
  3. Simplify: -1 - 1 - 1
  4. -1 - 1 - 1 = -3

I hope this helps!

Answer:

3

Step-by-step explanation: