Respuesta :

Answer

Step 1: Add -x^2 to both sides.

x2+c+8x+−x2=0+−x2

c+8x=−x2

Step 2: Add -8x to both sides.

c+8x+−8x=−x2+−8x

c=−x2−8x

Answer:

c=−x2−8x

I hope is is the answer you are looking for