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Question

In the following questions, two equations (I) and (II) are given. Solve both the equations and mark the option:
1) if x>y2) if xy3) if x<y4) if xy5) if x=y or relationship between x and y cannot be established

I. x2=64II. 2y2+25y+72=0
  1. 2
  2. 3
  3. 5
  4. 4
  5. 1


Solution

The correct option is C 5
I. x2=64x=±8II. 2y2+9y+16y+72=0y(2y+9)+8(2y+9)=0(y+8)(2y+9)=0y=8,92Hence, no definite relationship can be established between x and y.

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