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If x+y=3 and xy=2, then the value of x-y...

If `x+y=3` and `xy=2`, then the value of `x-y` is

A

`+-1`

B

`2`

C

`3`

D

`+-4`

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KALYANI PUBLICATION-EQUATIONS REDUCIBLE TO LINEAR FORM-EXERCISE
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  14. The solution of x/2+y/3=1 and x-y=0 is .

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  19. If x+y=3 and xy=2, then the value of x-y is

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