Solve.For f(x) = x2 - 36, find all x-values for which f(x) ? 0.
A. (-6, 6) or {x|-6 < x < 6}
B. [-20, 20] or {x|-20 ? x ? 20}
C. [-5, 5] or {x|-5 ? x ? 5}
D. [-6, 6] or {x|-6 ? x ? 6}
Answer: D
Mathematics
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