(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

x^2-6 = sqrt(x+6)

Solve for x.

Answer is x=3

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?

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# Solving x^2-6 = sqrt(x+6)

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