I 3x2 ndash 4x ndash 15 0 II 5y2 ndash 11y ndash 18 0 ........

Quantitative Aptitude ( CCS) Quadratic Equations

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I. 3x² – 4x – 15 = 0,

II. 5y² – 11y – 18 = 0

x > y

x < y

x ≥ y

x = y or relation cannot be established

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Explanation:

3x² – 4x – 15 = 0
3x² – 9x + 5x – 15 = 0
So x = -5/3, 3
5y² – 11y – 18 = 0
5y² – 15y + 6y – 18 = 0
So y = -6/5, 3
Put all values on number line and analyze the relationship
-5/3….. -6/5…. 3
Since the common value (3) is not in between other 2 values, there is no relationship between x and y.