Solve the inequality 2x2 +4x ≥ 6. [a] x ∈ (−∞,1] [b] x ∈ (−∞,−3] or x ∈ [1,+∞) [c] x ∈ [−3,1] [d] x ∈ (−∞,1] or x ∈ [−3,+∞)

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section: Chapter Questions
Problem 22CC
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Solve the inequality 2x2 +4x ≥ 6.

[a] x ∈ (−∞,1]

[b] x ∈ (−∞,−3] or x ∈ [1,+∞)

[c] x ∈ [−3,1]

[d] x ∈ (−∞,1] or x ∈ [−3,+∞)

 

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