Question

sqrt(x^2 - 9) = x - 1

Answer 1

\[\sqrt{x ^{2}-9}=x-1\]

Answer 2

square both sides to get
x^2-9=(x-1)^2

Answer 3

factor out (x-1)^2 to get
x^2-2x+1

Answer 4

*facepalm* I had that but thanks I just forgot to subtract x^2

Answer 5

lol no prod :D

Answer 6

prob* lol