1.

If $$ {(2x-5y)^{3}-(2x+5y)^{3}=y{[A{x}^{2}+B{y}^{2}]}}$$, then what is the value of $$ {(2A-B)}$$?

A. 25
B. 10
C. 15
D. 40
Answer» C. 15


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