What are the solutions to the quadratic equation x2 – 16 = 0?

x = 2 and x = –2
x = 4 and x = –4
x = 8 and x = –8
x = 16 and x = –16

If you would like to find the solutions to the quadratic equation x^2 - 16 = 0, you can do this using the following steps:

x^2 - 16 = 0
(x - 4) * (x + 4) = 0
x^2 + 4x - 4x - 16 = 0
1. x = 4
2. x = - 4

The correct result would be x = 4 and x = –4.