Question Paper from: SBI PO Prelims 2017

I. 3x² + 4x + 1=0

II. y² + 5y + 6= 0

1:

x = y or no relation can be established.

2:

x ≤ y

3:

x ≥ y

4:

x > y

5:

x < y

Solution:
Chapter Name: Quadratic Equation
Difficulty Level: Moderate

3x² + 4x + 1 = 0

⇒ 3x² + 3x + x + 1 = 0

⇒ 3x(x + 1) + 1(x + 1) = 0

⇒ (x + 1)(3x + 1) = 0

x = -1,

y² + 5y + 6 = 0

⇒ y² + 3y + 2y + 6 = 0

⇒ y(y + 3) + 2(y + 3) = 0

⇒ (y + 3)(y + 2) = 0

⇒ y = -3, -2

x > y

 


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SBI PO Prelims 2017

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