Respuesta :

Answer:

-10

Step-by-step explanation:

8 - 2x^2 =

= 8 - 2(-3)^2

= 8 - 2(9)

= 8 - 18

= -10

Answer:

-10

Step-by-step explanation:

when x = -3

8 - 2x^2

8 - 2*(-3)^2

8 - 2*9

8 - 18

-10