Question

HELP!! (x-1)^2-1

Answer 1

http://www.wolframalpha.com/input/?i=%28x-1%29^2-1+

Answer 2

x=2
you need to get (x-1)^2 alone by subtracting -1
(x-1)(x-1)-1=0
(x-1)(x-1)= 1
(2-1)(2-1)
4-2-2+1=1

Answer 3

(x-1)^2-1 is merely an algebraic expression. What are you to do with it?
Please include the instructions that came with this problem.