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If 5sqrt(5)x^(3) + 2sqrt(2)y^(3) = (Ax +...

If `5sqrt(5)x^(3) + 2sqrt(2)y^(3) = (Ax + sqrt(2)y)(Bx^(2) + 2y^(2) + Cxy)`, then the value of `(A^(2) + B^(2) - C^(2))` is :

A

20

B

30

C

15

D

40

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