- #1
rafehi
- 49
- 1
Homework Statement
x^2-6 = sqrt(x+6)
Solve for x.
Answer is x=3
The Attempt at a Solution
I've tried factorizing, but with no luck. I can get it down to:
x^4 - 12x^2 - x + 30 = 0,
but thinking back to my high school days, I'm sure there's an easier way to solve this question - just can't seem to remember how.
Any help?