Directions (49-53) : In the given questions, two equations numbered I and II are given. You have to solve both the equations and
Give answer
(1)If x < y
(2)If x > y
(3)If x >- y
(4)If x<- y
(5) If relationship between x and y cannot be established
I. \( \large 4x^{2} \)+ 16x + 15 = 0 II. \( \large 2y^{2} \) + 3y + 1 = 0
Correct Answer: Description for Correct answer:
I.
\( \large 4x^{2} \) + 16x +15 = 0
\( \large 4x^{2} \) + 10x + 6x + 15 = 0
2x (2x + 5 ) + 3 (2x + 5) = 0
(2x + 3) (2x + 5) = 0
x = -\( \Large \frac{3}{2} \), -\( \Large \frac{5}{2} \)
II.
\( \large 2y^{2} \) + 3y +1 = 0
\( \large 2y^{2} \) + 2y + y + 1 = 0
2y (y + 1 ) + 1 (y + 1) = 0
(2y + 1) (y + 1) = 0
y = -\( \Large \frac{1}{2} \), -1
Part of solved IBPS PO-Prelims1 questions and answers :
Exams >> Bank Exams >> IBPS PO-Prelims1