SOLUTION: what is the square root of 5x-6=x

Algebra ->  Square-cubic-other-roots -> SOLUTION: what is the square root of 5x-6=x      Log On


   



Question 277215: what is the square root of 5x-6=x
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
im guessing u mean this, but please next time please specify what is under the radical.
sqrt%285x%2B6%29=xsquare both sides
%28sqrt%285x%2B6%29%29%5E2=%28x%29%5E2
5x%2B6=x%5E2subtract
0=x%5E2-5x-6factor
x-3=0x-2=0
x=3orx=2
_____
if x=3
sqrt%285%283%29%2B6%29=3
sqrt%289%29=3
3=3 correct
if x=2
sqrt%285%282%29%2B6%29=2
sqrt%284%29=2
2=2 correct
_______________
im not clear if thats what u were trying to solve