could someone help me with this please? thank you

Answer:
x1 = 0.52
x2 = -10.1
x3 = 0.97
Step-by-step explanation:
From the question;
x1 = 1 - 3/(x0)^2
x0 = -2.5
x1 = 1- 3/(-2.5)^2
x1 = 1 -0.48
x1 = 0.52
x2 = 1 - 3/(x1)^2
x2 = 1 - 3/0.52^2
x2 = 1 - 11.1
x2 = -10.1
x3 = 1 - 3/(x2)^2
x3 = 1- 3/(-10.1)^2
x3 = 0.97