Answer:
2
Step-by-step explanation:
If you square -4 it equals 16 and if you take that number and divibe it by 8 you get 2.
It is known as the Law of conservation of energy
x+18
Let's simplify step-by-step.
2x+8−x+10
=2x+8+−x+10
Combine Like Terms:
=(2x+−x)+(8+10)
=x + 18