How do you solve #sqrt(2x+2) - sqrt(x+2) = 1#?
1 Answer
Nov 2, 2015
X = 7
Explanation:
Start off by shifting;
Square both sides;
Simplify as much as possible;
Square once again;
Simplify;
Factor;
So
But now we can be hasty in saying it has 2 solutions;
Make sute both solutions are real
Lets check for 7
Lets check for -1
#therefore# -1 is not a solution
We end up with x = 7