What is the smallest real number x in the domain of the function g(x) = sqrt((x + 3)^2 - (x - 8)^2)?
x is in the domain when (x + 3)^2 - (x - 8)^2 is nonegative.
(x + 3)^2 - (x - 8)^2 >= 0
Simplify the inequality. :))
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