Answer:
x = -4, 4
Explanation:
Hi there!

Rewrite 16:

The difference of squares rule states that
. With this, apply the difference of squares to the equation:

The zero-product property states that if the product of two numbers is 0, then one of the numbers must be equal to zero. Set each term equal to 0 and find the solutions:


Therefore, the solutions are -4 and 4.
I hope this helps!