If sqrt(3x^(2)-7x -30) - sqrt(2x^(2) -7x...

If `sqrt(3x^(2)-7x -30) - sqrt(2x^(2) -7x -5) = x -5`
has `alpha` and `beta` as its roots, then the value of `alpha beta` is

A

`-15`

B

`-5`

C

0

D

5

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