6. which of the following is NOT a solution to the quadratic inequality x²-2 > 0

A. 1
B. 2
C. 3
D. 4

7. Which of the following does NOT belong to the group?

A. x² + 2x > 0
B. 2x² + 3x +4 = 0
C. x² < 4
D. x² - 3x + 5 ≥ 0

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