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Question

I. 2x2+23x+63=0II. 4y2+19y+21=0

A
x<y
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B
x>y
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C
xy
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D
xy
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E
The relationship between x and y cannot be established.
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Solution

The correct option is A x<y
Equation I:-
2x2+23x+63=0
2x2+14x+9x+63=0
2x(x+7)+9(x+7)=0
(x+7)(2x+9)=0
x=7,x=92
Equation II:-
4y2+19y+21=0
4y2+12y+7y+21=0
(4y(y+3)+7(y+3)=0
(y+3)(4y+7)=0
y=3,y=74
Hence x<y

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