Answer:
x =
; y = 2
Step-by-step explanation:
You have a 45 -45 - 90 triangle. There are two things to know"
1. The hypothenuse = leg × 
2. The legs are equal.
The hypothenuse is opposite the right angle that is "y" in this problem.
Hypothenuse = leg × 
= 
The legs are =
Therefore x = 
I’m not going to say the answer but just\ multiply those fractions together to get the answer
(x - 4)^2 , i hope this helps