Multiple choice

In each of the following questions, two equations are given. You have to solve them and give answer- (I) 21x2 + 5x – 4 = 0 (II) 9y2 + 18y = – 8

  1. If x>y

  2. If x≥y

  3. If x<y

  4. If x≤y

  5. If x=y or relationship can not be established
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Solving (I): 21x² + 5x - 4 = 0 gives x = -4/7 or x = 4/3. Solving (II): 9y² + 18y + 8 = 0 gives y = -4/3 (repeated root). When x = 4/3 (positive) and y = -4/3 (negative), we have x > y. The positive root of x is greater than the negative root of y.

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