. f|x ^ 2 - 2x - 8| + |x ^ 2 + x - 2| = 3|x + 2| , then the set of all real values
Y [1, 4] cup\ -2\
aligned G [1, 4] cup[-2,1] cup[4, infty) aligned
(b) [1,4]
(d) (-∞, -2] [1,4]
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