qr319988 qr319988

29-11-2022
Mathematics

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Which quadratic inequality has a solution set where ∈ (− ∞, − 7] ∈ [5, ∞)?

A x^2+ 2 − 21 ≥ 14
B ^2 − 5 − 35 ≤ 15
C ^2 − 5 + 3 < 9
D ^2+ 7 − 2 >− 12

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