- #1
yoleven
- 78
- 1
Homework Statement
sqrt(x-1)+sqrt(x-3)+8>0
Homework Equations
The Attempt at a Solution
I thought I would square everything to get rid of the root signs...leaving me with
(x-1)+(x-3)+64>0
2x+60>0
x>30
ss:{xE[30,Infinity)}
However, the answer is supposed to be..
[3,infinity)
Please tell me what I am missing.