Quadratic Equations

Quantitative Aptitude(IBPS PO)

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I. 11x²+120x= 11

II. 8y²+74y+143=0

x > y

x ≥ y

x ≤ y

x = y or Cannot be determined

Explanation:

11x²+120x= 11
11x² +121x-x-11=0
11x(x +11) -1(x +11)=0
(x+11) ( 11x-1)=0
x=- 11 , 1/11
8y²+74y+143=0
8y² +22y+52y+143 =
2y( 4y+11) +13(4y+11)=0
(4y+11) ( 2y+13)=0
y= -11/4, -13/2
Hence the relation cannot be determined

Trial Period Ended