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Question

I. 2x2 + 5x + 2 = 0

II. 4y2 = 1

A If x = y or relationship between x and y cannot be established. Correct Answer Incorrect Answer
B if x > y Correct Answer Incorrect Answer
C if x < y Correct Answer Incorrect Answer
D if x ≥ y Correct Answer Incorrect Answer
E if x ≤ y Correct Answer Incorrect Answer

Solution

I. 2x2+ 5x + 2 = 0 2x2+ 4x + x + 2 = 0 2x(x + 2) + 1(x + 2) = 0 (2x + 1) (x + 2) = 0 x = - 1/2 , - 2 II. 4y² = 1 y² = 1/4 y = ± 1/2 Hence, x ≤ y

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