Question Paper from: SBI PO Prelims 2017
I. x² - 7x + 10 = 0
II. y² - 12y + 35 = 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
x² - 7x + 10 = 0
⇒ x² - 2x - 5x + 10 = 0
⇒ x(x - 2) - 5(x - 2) = 0
⇒ (x - 5)(x - 2) = 0
⇒ x = 5, 2
y² - 12y + 35 = 0
⇒ y² - 5y - 7y + 35 = 0
⇒ y(y - 5) - 7(y - 5) = 0
⇒ (y - 7)(y - 5)
⇒ y = 7, 5
x y
This has been asked in Question Paper
SBI PO Prelims 2017
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