Which of the following expressions is equal to x² + 36? * (x - 6i)²
(x + 6i)²
(x + 9i)(x - 4i)
(x + 6i)(x - 6i)

Hey bby was a good way i just got

Use pythagorean’s theorem and find the missing side lengths of the two smaller triangles and add them together
13^2 - 12^2 = 5
15^2 - 12^2 = 9
5+9 = 14
14 is the length of each side of the square
14^2 + 14^2 = 19.8
19.8 is the diagonal length of the inside if the square