implifying
x2 + -16 = 0
Reorder the terms:
-16 + x2 = 0
Solving
-16 + x2 = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '16' to each side of the equation.
-16 + 16 + x2 = 0 + 16
Combine like terms: -16 + 16 = 0
0 + x2 = 0 + 16
x2 = 0 + 16
Combine like terms: 0 + 16 = 16
x2 = 16
Simplifying
x2 = 16
Take the square root of each side:
x = {-4, 4}
