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|1 - 4x| > 7 A. x < -1.5 ∪ x > 1.5 B. x < -1.5 ∪ x > 2 C. x

|1 - 4x| > 7 A. x < -1.5 ∪ x > 1.5 B. x < -1.5 ∪ x > 2 C. x
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2 votes
|1 - 4x| > 7

A. x
B. x < -1.5 ∪ x > 2
C. x

asked
User Seventeen
by
8.2k points

1 Answer

0 votes

|1-4x| > 7\iff1-4x > 7\ \vee\ 1-4x < -7\ \ \ |-1\\\\-4x > 6\ \vee\ -4x < -8\ \ \ |:(-4)\\\\x < -1.5\ \vee\ x > 2\\\\Answer:\boxed{B.\ \{x:x < -1.5\ \cup\ x > 2\}}
answered
User Aravindhan
by
8.2k points
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