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

The left hand side of the equation given, x² - 16, is a difference of two squares. the first term, x², is a square of x and the second term, 16, is a square of 4. the factors of the left hand side are (x - 4) and (x + 4). 
                                  (x - 4)(x + 4) = 0
thus, the value of x are 4 and -4.

answer:

the answer is 4 and -4

i hope this