I think the answer here is a :)
C = 3
You isolate the variable by dividing each side by factors that don’t contain the variable
Answer:
x = -12
Step-by-step explanation:
2x^2 + 8 = x^2 - 16
2x + 2x + 8 = x + x - 16
4x + 8 = 2x - 16
-2x -2x
2x + 8 = -16
-8 -8
2x = -24
---- ------
2 2
x = -12
Answer to 1: 648
Answer to 2: 175
