2x^2 - 1 >= 8
2x^2 >= 9
x^2 >= 4.5
x >= √4.5 or x <= -√4.5
Therefore, the solution to the inequality is x >= √4.5 or x <= -√4.5.
2x^2 - 1 >= 8
2x^2 >= 9
x^2 >= 4.5
x >= √4.5 or x <= -√4.5
Therefore, the solution to the inequality is x >= √4.5 or x <= -√4.5.