1. Which of the following are quadratic inequalities in one variable? A. x2-3x +5 0 B. 5 < x2 -3x C. x > x D. (x+2)(x-3)>7 2. Which of the following intervals describes the graph at the right? 4. -2 A. (-2, 3) 3. Which of the following are solutions of x2 + 4x - 125 0? B. [-2, 3] C. (-00, -2)u(3, 0o0) D. (-00, -2] u [3, o) A. -2 4. Which of the following are solutions of 3x + x2 > 2? В. О C. 6 D. 10 A. -4 В. -1 С. 1 D. 2

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