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For a alt=0, determine all real roots of...

For a `alt=0,` determine all real roots of the equation `x^2-2a|x-a|-3a^2=0.`

A

`a(1- sqrt(2)), a(-1 + sqrt(6))`

B

`a(1+sqrt(2)), a(1-sqrt(6))`

C

`a(1-sqrt(2)), a(1-sqrt(6))`

D

none of these

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The correct Answer is:
A
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