Answer:
-4 and 4
Step-by-step explanation:
<u>Method 1</u>
Apply Difference of Two Squares Formula: 
Given 
Rewrite 16 as 4²
Therefore,
and 






<u>Method 2</u>
Given equation:

Add 16 to both sides:


Square root both sides:


Therefore, x = -4, x = 4
True. 6 - 3 is the same as 6 + (-3)
I’m assuming there is a picture you are missing.
Graph of f(x)+1 would be x+1.
This would mean that all y-values of the graph will increase by one.
Answer:
A
Step-by-step explanation:
You can't square a negative number, so the number must be non real.