Quadratic Equations

Quantitative Aptitude ( CCS)

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I. 3x² + 16x + 20 = 0

II. 3y² – 14y – 5 = 0

x > y

x < y

x ≥ y

x ≤ y

Explanation:

3x² + 16x + 20 = 0
3x² + 6x + 10x + 20 = 0
Gives x = -2, -10/3
3y² – 14y – 5 = 0
3y² – 15y + y – 5 = 0
Gives y = -1/3, 5
Put all values on number line and analyze the relationship
-10/3… -2…. -1/3…. 5

By: Amit Kumar

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